RHSA-2026:26542

Vulnerability from csaf_redhat - Published: 2026-06-25 10:39 - Updated: 2026-07-13 16:28
Summary
Red Hat Security Advisory: OpenShift Container Platform 4.13.68 bug fix and security update
Severity
Critical
Notes
Topic: Red Hat OpenShift Container Platform release 4.13.68 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.13. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.13.68. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2026:26541 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/release_notes Security Fix(es): None For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. All OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html-single/updating_clusters/index#updating-cluster-within-minor.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-4878

A flaw was found in libcap. A local unprivileged user can exploit a Time-of-check-to-time-of-use (TOCTOU) race condition in the `cap_set_file()` function. This allows an attacker with write access to a parent directory to redirect file capability updates to an attacker-controlled file. By doing so, capabilities can be injected into or stripped from unintended executables, leading to privilege escalation.

6.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-35385

A flaw was found in OpenSSH. When the `scp` command is used by a root user to download a file with the legacy protocol option (`-O`) and without preserving original file permissions (`-p`), the downloaded file can be installed with elevated privileges (setuid or setgid). This unexpected behavior could allow a malicious file to execute with higher permissions than intended, posing a security risk through potential privilege escalation.

7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-281 - Improper Preservation of Permissions
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-39979

A flaw was found in jq, a command line JSON processor, specifically in the libjq API. Parsing a malformed JSON input from a non-NUL-terminated buffer using the `jv_parse_sized` function can cause an out-of-bounds read, resulting in an application crash and a possible memory disclosure within the error message generated by the parser.

8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CWE-125 - Out-of-bounds Read
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-40164

A flaw was found in jq, a command-line JSON processor. A remote attacker could exploit this vulnerability by providing a specially crafted JSON object. This object leverages a weakness in jq's hashing algorithm, which uses a hardcoded, publicly known seed. By crafting the JSON object to cause hash collisions, an attacker can degrade the performance of JSON object hash table operations, leading to significant CPU exhaustion and a denial of service (DoS) for systems processing the malicious JSON data.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-341 - Predictable from Observable State
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-41035

A flaw was found in rsync. When rsync is configured to handle extended attributes (using the -X or --xattrs option), a remote attacker can exploit a use-after-free vulnerability. This occurs because the receive_xattr function incorrectly processes an untrusted length value during a sorting operation, leading to memory corruption. Successful exploitation can result in a denial of service, causing the rsync process to crash, and may potentially allow for arbitrary code execution.

7.4 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
CWE-805 - Buffer Access with Incorrect Length Value
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-43037

A flaw was found in the Linux kernel's IPv6 tunnel implementation. A remote attacker could exploit this flaw by sending malicious ICMPv6 error messages to cause a stack-based buffer overflow in the kernel's IPv4-over-IPv6 tunnel error handling code. This could result in a kernel crash (denial of service) or potentially allow arbitrary code execution with kernel privileges.

8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0 —
Vendor Fix fix
Workaround
Threats
Impact Critical
CVE-2026-43284

A flaw was found in the Linux kernel's xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The xfrm-ESP variant requires unprivileged user or network namespace creation, while the RxRPC variant depends on the rxrpc module being available on the target system.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-123 - Write-what-where Condition
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:26542 self
https://access.redhat.com/security/updates/classi… external
https://bugzilla.redhat.com/show_bug.cgi?id=2451615 external
https://bugzilla.redhat.com/show_bug.cgi?id=2454469 external
https://bugzilla.redhat.com/show_bug.cgi?id=2458077 external
https://bugzilla.redhat.com/show_bug.cgi?id=2458084 external
https://bugzilla.redhat.com/show_bug.cgi?id=2458898 external
https://bugzilla.redhat.com/show_bug.cgi?id=2464351 external
https://bugzilla.redhat.com/show_bug.cgi?id=2467771 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-4878 self
https://bugzilla.redhat.com/show_bug.cgi?id=2451615 external
https://www.cve.org/CVERecord?id=CVE-2026-4878 external
https://nvd.nist.gov/vuln/detail/CVE-2026-4878 external
https://bugzilla.redhat.com/show_bug.cgi?id=2447554 external
https://access.redhat.com/security/cve/CVE-2026-35385 self
https://bugzilla.redhat.com/show_bug.cgi?id=2454469 external
https://www.cve.org/CVERecord?id=CVE-2026-35385 external
https://nvd.nist.gov/vuln/detail/CVE-2026-35385 external
https://marc.info/?l=openssh-unix-dev&m=177513443… external
https://www.openssh.org/releasenotes.html#10.3p1 external
https://www.openwall.com/lists/oss-security/2026/… external
https://access.redhat.com/security/cve/CVE-2026-39979 self
https://bugzilla.redhat.com/show_bug.cgi?id=2458077 external
https://www.cve.org/CVERecord?id=CVE-2026-39979 external
https://nvd.nist.gov/vuln/detail/CVE-2026-39979 external
https://github.com/jqlang/jq/commit/2f09060afab23… external
https://github.com/jqlang/jq/security/advisories/… external
https://access.redhat.com/security/cve/CVE-2026-40164 self
https://bugzilla.redhat.com/show_bug.cgi?id=2458084 external
https://www.cve.org/CVERecord?id=CVE-2026-40164 external
https://nvd.nist.gov/vuln/detail/CVE-2026-40164 external
https://github.com/jqlang/jq/commit/0c7d133c3c7e3… external
https://github.com/jqlang/jq/security/advisories/… external
https://access.redhat.com/security/cve/CVE-2026-41035 self
https://bugzilla.redhat.com/show_bug.cgi?id=2458898 external
https://www.cve.org/CVERecord?id=CVE-2026-41035 external
https://nvd.nist.gov/vuln/detail/CVE-2026-41035 external
https://github.com/RsyncProject/rsync/issues/871 external
https://github.com/RsyncProject/rsync/releases external
https://www.openwall.com/lists/oss-security/2026/… external
https://access.redhat.com/security/cve/CVE-2026-43037 self
https://bugzilla.redhat.com/show_bug.cgi?id=2464351 external
https://www.cve.org/CVERecord?id=CVE-2026-43037 external
https://nvd.nist.gov/vuln/detail/CVE-2026-43037 external
https://lore.kernel.org/linux-cve-announce/202605… external
https://access.redhat.com/security/cve/CVE-2026-43284 self
https://bugzilla.redhat.com/show_bug.cgi?id=2467771 external
https://access.redhat.com/security/vulnerabilitie… external
https://www.cve.org/CVERecord?id=CVE-2026-43284 external
https://nvd.nist.gov/vuln/detail/CVE-2026-43284 external
https://dirtyfrag.io/ external
Acknowledgments
Ali Raza
To clipboard 

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        {
          "category": "description",
          "text": "A flaw was found in OpenSSH. When the `scp` command is used by a root user to download a file with the legacy protocol option (`-O`) and without preserving original file permissions (`-p`), the downloaded file can be installed with elevated privileges (setuid or setgid). This unexpected behavior could allow a malicious file to execute with higher permissions than intended, posing a security risk through potential privilege escalation.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "OpenSSH: OpenSSH: Privilege escalation via scp legacy protocol when not preserving file mode",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-35385"
        },
        {
          "category": "external",
          "summary": "RHBZ#2454469",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454469"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-35385",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-35385"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-35385",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35385"
        },
        {
          "category": "external",
          "summary": "https://marc.info/?l=openssh-unix-dev\u0026m=177513443901484\u0026w=2",
          "url": "https://marc.info/?l=openssh-unix-dev\u0026m=177513443901484\u0026w=2"
        },
        {
          "category": "external",
          "summary": "https://www.openssh.org/releasenotes.html#10.3p1",
          "url": "https://www.openssh.org/releasenotes.html#10.3p1"
        },
        {
          "category": "external",
          "summary": "https://www.openwall.com/lists/oss-security/2026/04/02/3",
          "url": "https://www.openwall.com/lists/oss-security/2026/04/02/3"
        }
      ],
      "release_date": "2026-04-02T16:30:59.615000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-25T10:39:35+00:00",
          "details": "For OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/release_notes\n\nYou may download the oc tool and use it to inspect release image metadata for x86_64 architecture. The image digest may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha value for the release is as follows:\n\n      (For x86_64 architecture)\n      The image digest is sha256:b9b407bf3f979c98ce5c702053133e3fc45e3de56255c3f26471e1c430983b53\n\nAll OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html-single/updating_clusters/index#updating-cluster-within-minor.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:26542"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "OpenSSH: OpenSSH: Privilege escalation via scp legacy protocol when not preserving file mode"
    },
    {
      "cve": "CVE-2026-39979",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2026-04-13T23:01:01.219840+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2458077"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in jq, a command line JSON processor, specifically in the libjq API. Parsing a malformed JSON input from a non-NUL-terminated buffer using the `jv_parse_sized` function can cause an out-of-bounds read, resulting in an application crash and a possible memory disclosure within the error message generated by the parser.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "jq: out-of-bounds read in jv_parse_sized() on error formatting for non-NUL-terminated buffers",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "To exploit this flaw, an attacker needs to supply malformed JSON from a non-NUL-terminated buffer to an application using the `jv_parse_sized` function. This allows the attacker to trigger the out-of-bounds read, causing an application crash and potentially disclosing memory with no other security impact. As this issue affects the libjq library, it is more likely to be exposed to untrusted input. Due to these reasons, this vulnerability has been rated with an important severity.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-39979"
        },
        {
          "category": "external",
          "summary": "RHBZ#2458077",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458077"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-39979",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-39979"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-39979",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39979"
        },
        {
          "category": "external",
          "summary": "https://github.com/jqlang/jq/commit/2f09060afab23fe9390cce7cb860b10416e1bf5f",
          "url": "https://github.com/jqlang/jq/commit/2f09060afab23fe9390cce7cb860b10416e1bf5f"
        },
        {
          "category": "external",
          "summary": "https://github.com/jqlang/jq/security/advisories/GHSA-2hhh-px8h-355p",
          "url": "https://github.com/jqlang/jq/security/advisories/GHSA-2hhh-px8h-355p"
        }
      ],
      "release_date": "2026-04-13T22:18:56.252000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-25T10:39:35+00:00",
          "details": "For OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/release_notes\n\nYou may download the oc tool and use it to inspect release image metadata for x86_64 architecture. The image digest may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha value for the release is as follows:\n\n      (For x86_64 architecture)\n      The image digest is sha256:b9b407bf3f979c98ce5c702053133e3fc45e3de56255c3f26471e1c430983b53\n\nAll OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html-single/updating_clusters/index#updating-cluster-within-minor.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:26542"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, manually ensure that every buffer is NUL-terminated before passing it to the \u0027jv_parse_sized\u0027 function.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "jq: out-of-bounds read in jv_parse_sized() on error formatting for non-NUL-terminated buffers"
    },
    {
      "cve": "CVE-2026-40164",
      "cwe": {
        "id": "CWE-341",
        "name": "Predictable from Observable State"
      },
      "discovery_date": "2026-04-14T00:01:04.003115+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2458084"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in jq, a command-line JSON processor. A remote attacker could exploit this vulnerability by providing a specially crafted JSON object. This object leverages a weakness in jq\u0027s hashing algorithm, which uses a hardcoded, publicly known seed. By crafting the JSON object to cause hash collisions, an attacker can degrade the performance of JSON object hash table operations, leading to significant CPU exhaustion and a denial of service (DoS) for systems processing the malicious JSON data.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "jq: jq: Denial of Service via crafted JSON object causing hash collisions",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-40164"
        },
        {
          "category": "external",
          "summary": "RHBZ#2458084",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458084"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-40164",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-40164"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-40164",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40164"
        },
        {
          "category": "external",
          "summary": "https://github.com/jqlang/jq/commit/0c7d133c3c7e37c00b6d46b658a02244fdd3c784",
          "url": "https://github.com/jqlang/jq/commit/0c7d133c3c7e37c00b6d46b658a02244fdd3c784"
        },
        {
          "category": "external",
          "summary": "https://github.com/jqlang/jq/security/advisories/GHSA-wwj8-gxm6-jc29",
          "url": "https://github.com/jqlang/jq/security/advisories/GHSA-wwj8-gxm6-jc29"
        }
      ],
      "release_date": "2026-04-13T23:40:12.693000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-25T10:39:35+00:00",
          "details": "For OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/release_notes\n\nYou may download the oc tool and use it to inspect release image metadata for x86_64 architecture. The image digest may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha value for the release is as follows:\n\n      (For x86_64 architecture)\n      The image digest is sha256:b9b407bf3f979c98ce5c702053133e3fc45e3de56255c3f26471e1c430983b53\n\nAll OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html-single/updating_clusters/index#updating-cluster-within-minor.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:26542"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "jq: jq: Denial of Service via crafted JSON object causing hash collisions"
    },
    {
      "cve": "CVE-2026-41035",
      "cwe": {
        "id": "CWE-805",
        "name": "Buffer Access with Incorrect Length Value"
      },
      "discovery_date": "2026-04-16T08:00:54.200357+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2458898"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in rsync. When rsync is configured to handle extended attributes (using the -X or --xattrs option), a remote attacker can exploit a use-after-free vulnerability. This occurs because the receive_xattr function incorrectly processes an untrusted length value during a sorting operation, leading to memory corruption. Successful exploitation can result in a denial of service, causing the rsync process to crash, and may potentially allow for arbitrary code execution.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "rsync: Rsync: Use-after-free vulnerability in extended attribute handling",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important flaw in rsync that allows a remote attacker to cause a denial of service or potentially execute arbitrary code. The vulnerability is present when rsync is used with extended attributes enabled via the `-X` or `--xattrs` option, which is not a default configuration. Exploitation requires the victim to explicitly enable this feature.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-41035"
        },
        {
          "category": "external",
          "summary": "RHBZ#2458898",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458898"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-41035",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-41035"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-41035",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41035"
        },
        {
          "category": "external",
          "summary": "https://github.com/RsyncProject/rsync/issues/871",
          "url": "https://github.com/RsyncProject/rsync/issues/871"
        },
        {
          "category": "external",
          "summary": "https://github.com/RsyncProject/rsync/releases",
          "url": "https://github.com/RsyncProject/rsync/releases"
        },
        {
          "category": "external",
          "summary": "https://www.openwall.com/lists/oss-security/2026/04/16/2",
          "url": "https://www.openwall.com/lists/oss-security/2026/04/16/2"
        }
      ],
      "release_date": "2026-04-16T06:53:05.237000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-25T10:39:35+00:00",
          "details": "For OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/release_notes\n\nYou may download the oc tool and use it to inspect release image metadata for x86_64 architecture. The image digest may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha value for the release is as follows:\n\n      (For x86_64 architecture)\n      The image digest is sha256:b9b407bf3f979c98ce5c702053133e3fc45e3de56255c3f26471e1c430983b53\n\nAll OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html-single/updating_clusters/index#updating-cluster-within-minor.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:26542"
        },
        {
          "category": "workaround",
          "details": "To mitigate this vulnerability, avoid using the -X or --xattrs options with rsync if extended attribute handling is not essential for your operations. Disabling these options prevents the vulnerable code path from being exercised. This may impact functionality that relies on extended attributes.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "rsync: Rsync: Use-after-free vulnerability in extended attribute handling"
    },
    {
      "cve": "CVE-2026-43037",
      "cwe": {
        "id": "CWE-843",
        "name": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)"
      },
      "discovery_date": "2026-05-01T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2464351"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Linux kernel\u0027s IPv6 tunnel implementation. A remote attacker could exploit this flaw by sending malicious ICMPv6 error messages to cause a stack-based buffer overflow in the kernel\u0027s IPv4-over-IPv6 tunnel error handling code. This could result in a kernel crash (denial of service) or potentially allow arbitrary code execution with kernel privileges.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: ip6_tunnel: clear skb2-\u003ecb[] in ip4ip6_err()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This Critical flaw in the Linux kernel\u0027s IPv6 tunneling error handling can lead to a stack buffer overflow. An unauthenticated remote attacker could exploit this by sending specially crafted network packets, potentially resulting in a denial of service or information disclosure on affected Red Hat Enterprise Linux systems.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-43037"
        },
        {
          "category": "external",
          "summary": "RHBZ#2464351",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464351"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-43037",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-43037"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-43037",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43037"
        },
        {
          "category": "external",
          "summary": "https://lore.kernel.org/linux-cve-announce/2026050102-CVE-2026-43037-0346@gregkh/T",
          "url": "https://lore.kernel.org/linux-cve-announce/2026050102-CVE-2026-43037-0346@gregkh/T"
        }
      ],
      "release_date": "2026-05-01T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-25T10:39:35+00:00",
          "details": "For OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/release_notes\n\nYou may download the oc tool and use it to inspect release image metadata for x86_64 architecture. The image digest may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha value for the release is as follows:\n\n      (For x86_64 architecture)\n      The image digest is sha256:b9b407bf3f979c98ce5c702053133e3fc45e3de56255c3f26471e1c430983b53\n\nAll OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html-single/updating_clusters/index#updating-cluster-within-minor.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:26542"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is to skip loading the affected module `ip6_tunnel` onto the system till we have a fix available, this can be done by a blacklist mechanism, this will ensure the driver is not loaded at the boot time.\n~~~\nHow do I blacklist a kernel module to prevent it from loading automatically? \nhttps://access.redhat.com/solutions/41278  \n~~~\n\nWe may also want to detection and monitoring an affected system as below:\n~~~\nMonitor for exploitation attempts:\n\n# Enable kernel audit for IPv6 tunnel operations\nauditctl -a always,exit -F arch=b64 -S socket -F a0=10 -F a1=3 -k ipv6_tunnel\n\n# Monitor system logs for kernel panics/crashes\njournalctl -k -p err -f | grep -i \"ip6_tunnel\\|icmp\\|stack\"\n~~~",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "kernel: ip6_tunnel: clear skb2-\u003ecb[] in ip4ip6_err()"
    },
    {
      "cve": "CVE-2026-43284",
      "cwe": {
        "id": "CWE-123",
        "name": "Write-what-where Condition"
      },
      "discovery_date": "2026-05-07T15:56:04.044000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2467771"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Linux kernel\u0027s xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The xfrm-ESP variant requires unprivileged user or network namespace creation, while the RxRPC variant depends on the rxrpc module being available on the target system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: \"Dirty Frag\" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue is classified as Important, rather than Critical severity, because exploitation requires local access to the system. A low-privileged local attacker can exploit this flaw in the Linux kernel\u0027s xfrm-ESP and RxRPC subsystems to gain root privileges by overwriting sensitive system files. Exploitation does not require user interaction, potentially resulting in full compromise of confidentiality, integrity, and availability.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-43284"
        },
        {
          "category": "external",
          "summary": "RHBZ#2467771",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467771"
        },
        {
          "category": "external",
          "summary": "RHSB-2026-003",
          "url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-003"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-43284",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-43284"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-43284",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43284"
        },
        {
          "category": "external",
          "summary": "https://dirtyfrag.io/",
          "url": "https://dirtyfrag.io/"
        }
      ],
      "release_date": "2026-05-07T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-25T10:39:35+00:00",
          "details": "For OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/release_notes\n\nYou may download the oc tool and use it to inspect release image metadata for x86_64 architecture. The image digest may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha value for the release is as follows:\n\n      (For x86_64 architecture)\n      The image digest is sha256:b9b407bf3f979c98ce5c702053133e3fc45e3de56255c3f26471e1c430983b53\n\nAll OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html-single/updating_clusters/index#updating-cluster-within-minor.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:26542"
        },
        {
          "category": "workaround",
          "details": "See the security bulletin for a detailed mitigation procedure.",
          "product_ids": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.13:rhcos-x86_64-413.92.202606160406-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: \"Dirty Frag\" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel"
    }
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.