Vulnerability-Lookup

RHSA-2026:37469

Vulnerability from csaf_redhat - Published: 2026-07-10 00:30 - Updated: 2026-09-08 03:30

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Moderate

Notes

Topic: An update for Red Hat Hardened Images RPMs is now available.

Details: This update includes the following RPMs: p11-kit: * mingw32-p11-kit-0.26.2-1.2.hum1 (noarch) * mingw64-p11-kit-0.26.2-1.2.hum1 (noarch) * p11-kit-0.26.2-1.2.hum1 (aarch64, x86_64) * p11-kit-client-0.26.2-1.2.hum1 (aarch64, x86_64) * p11-kit-devel-0.26.2-1.2.hum1 (aarch64, x86_64) * p11-kit-server-0.26.2-1.2.hum1 (aarch64, x86_64) * p11-kit-trust-0.26.2-1.2.hum1 (aarch64, x86_64) * p11-kit-0.26.2-1.2.hum1.src (src) Security Fix(es): p11-kit: * CVE-2026-13757

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-2026-13757

A flaw was found in p11-kit. The RPC message attribute parsing functions p11_rpc_message_get_attribute() and p11_rpc_message_get_attribute_array_value() form a mutually-recursive call chain with no recursion depth limit when processing nested CKA_WRAP_TEMPLATE, CKA_UNWRAP_TEMPLATE, and CKA_DERIVE_TEMPLATE attributes. An unauthenticated attacker with local access to the p11-kit RPC Unix domain socket can send a specially crafted request with deeply nested template attributes, causing stack exhaustion and crashing the p11-kit server process and its dependent services.

6.2 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-674 - Uncontrolled Recursion

Affected products

Fixed 4 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:p11-kit-main@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:p11-kit-main@noarch	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:p11-kit-main@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:p11-kit-main@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Moderate

References

10 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:37469	self
https://access.redhat.com/security/cve/CVE-2026-13757	external
https://access.redhat.com/security/updates/classi…	external
https://images.redhat.com/	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-13757	self
https://bugzilla.redhat.com/show_bug.cgi?id=2494556	external
https://www.cve.org/CVERecord?id=CVE-2026-13757	external
https://nvd.nist.gov/vuln/detail/CVE-2026-13757	external
https://github.com/advisories/GHSA-p2wm-69qx-x25w	external

JSON

To clipboard

{
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      "text": "Moderate"
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        "text": "An update for Red Hat Hardened Images RPMs is now available.",
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      },
      {
        "category": "general",
        "text": "This update includes the following RPMs:\n\np11-kit:\n  * mingw32-p11-kit-0.26.2-1.2.hum1 (noarch)\n  * mingw64-p11-kit-0.26.2-1.2.hum1 (noarch)\n  * p11-kit-0.26.2-1.2.hum1 (aarch64, x86_64)\n  * p11-kit-client-0.26.2-1.2.hum1 (aarch64, x86_64)\n  * p11-kit-devel-0.26.2-1.2.hum1 (aarch64, x86_64)\n  * p11-kit-server-0.26.2-1.2.hum1 (aarch64, x86_64)\n  * p11-kit-trust-0.26.2-1.2.hum1 (aarch64, x86_64)\n  * p11-kit-0.26.2-1.2.hum1.src (src)\n\nSecurity Fix(es):\n\np11-kit:\n  * CVE-2026-13757",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "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.",
        "title": "Terms of Use"
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      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update",
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                "product": {
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                  "product_id": "Red Hat Hardened Images",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:hummingbird:1"
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            ],
            "category": "product_family",
            "name": "Red Hat Hardened Images"
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                "name": "p11-kit-main@noarch",
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                  }
                }
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            ],
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            "name": "noarch"
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          {
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                  }
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            "name": "src"
          },
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                "name": "p11-kit-main@x86_64",
                "product": {
                  "name": "p11-kit-main@x86_64",
                  "product_id": "p11-kit-main@x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/p11-kit@0.26.2-1.2.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
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        },
        "product_reference": "p11-kit-main@aarch64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
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        },
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      },
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      },
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        },
        "product_reference": "p11-kit-main@x86_64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-13757",
      "cwe": {
        "id": "CWE-674",
        "name": "Uncontrolled Recursion"
      },
      "discovery_date": "2026-06-23T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2494556"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in p11-kit. The RPC message attribute parsing functions p11_rpc_message_get_attribute() and p11_rpc_message_get_attribute_array_value() form a mutually-recursive call chain with no recursion depth limit when processing nested CKA_WRAP_TEMPLATE, CKA_UNWRAP_TEMPLATE, and CKA_DERIVE_TEMPLATE attributes. An unauthenticated attacker with local access to the p11-kit RPC Unix domain socket can send a specially crafted request with deeply nested template attributes, causing stack exhaustion and crashing the p11-kit server process and its dependent services.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "p11-kit: Stack exhaustion via unbounded recursion in RPC attribute parsing",
          "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": [
          "Red Hat Hardened Images:p11-kit-main@aarch64",
          "Red Hat Hardened Images:p11-kit-main@noarch",
          "Red Hat Hardened Images:p11-kit-main@src",
          "Red Hat Hardened Images:p11-kit-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-13757"
        },
        {
          "category": "external",
          "summary": "RHBZ#2494556",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2494556"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-13757",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-13757"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-13757",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13757"
        },
        {
          "category": "external",
          "summary": "https://github.com/advisories/GHSA-p2wm-69qx-x25w",
          "url": "https://github.com/advisories/GHSA-p2wm-69qx-x25w"
        }
      ],
      "release_date": "2026-06-23T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-10T00:30:01+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:p11-kit-main@aarch64",
            "Red Hat Hardened Images:p11-kit-main@noarch",
            "Red Hat Hardened Images:p11-kit-main@src",
            "Red Hat Hardened Images:p11-kit-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:37469"
        },
        {
          "category": "workaround",
          "details": "This CVE requires same-user access to the p11-kit RPC Unix domain socket (/run/user/\u003cuid\u003e/p11-kit/pkcs11-*). Any process running as the socket-owning user can trigger the crash without further authentication.\n\nIf p11-kit is managed via systemd --user, ensure `Restart=on-failure` is set in the unit file so that a crash is automatically recovered without manual intervention.\n\nRed Hat recommends updating p11-kit to version 0.26.3 or later, which introduces a recursion depth limit in the RPC attribute parsing and fully addresses this flaw.",
          "product_ids": [
            "Red Hat Hardened Images:p11-kit-main@aarch64",
            "Red Hat Hardened Images:p11-kit-main@noarch",
            "Red Hat Hardened Images:p11-kit-main@src",
            "Red Hat Hardened Images:p11-kit-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:p11-kit-main@aarch64",
            "Red Hat Hardened Images:p11-kit-main@noarch",
            "Red Hat Hardened Images:p11-kit-main@src",
            "Red Hat Hardened Images:p11-kit-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "p11-kit: Stack exhaustion via unbounded recursion in RPC attribute parsing"
    }
  ]
}

CVE-2026-13757 (GCVE-0-2026-13757)

Vulnerability from cvelistv5 – Published: 2026-06-29 18:44 – Updated: 2026-09-01 12:47

Title

P11-kit: stack exhaustion via unbounded recursion in rpc attribute parsing

Summary

Severity

6.2 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-01 14:21 UTC

CWE

CWE-674 - Uncontrolled Recursion

Assigner

redhat redhat root

References

11 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:37469	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:38342	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:49667	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:49668	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:53371	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54387	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54760	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:58981	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-13757	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2494556	issue-trackingx_refsource_REDHAT
https://github.com/advisories/GHSA-p2wm-69qx-x25w

Impacted products

19 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:0.26.4-1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:0.26.4-1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat	Red Hat Discovery 2	Unaffected: 1786638573 , < * (rpm) cpe:/a:redhat:discovery:2::el9
Red Hat	Red Hat Discovery 2	Unaffected: 1786634825 , < * (rpm) cpe:/a:redhat:discovery:2::el9
Red Hat	Red Hat Hardened Images	Unaffected: 0.26.2-1.2.hum1 , < * (rpm) cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat Hardened Images	Unaffected: 0.26.4-1.hum1 , < * (rpm) cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat Insights proxy 1.5	Unaffected: 1786433656 , < * (rpm) cpe:/a:redhat:insights_proxy:1.5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1786435241 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1786533457 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1786533449 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1786435483 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1786533529 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1787241211 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1787135742 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1787241260 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-06-23 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-13757",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-01T14:21:14.619672Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-07-01T14:21:43.532Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          ],
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          "packageName": "p11-kit",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat",
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        },
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          "packageName": "p11-kit",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
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              "status": "unaffected",
              "version": "0:0.26.4-1.el9_8",
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.