RHSA-2026:53735

Vulnerability from csaf_redhat - Published: 2026-08-11 17:14 - Updated: 2026-08-12 08:02
Summary
Red Hat Security Advisory: OpenShift Virtualization v4.13 Images
Severity
Important
Notes
Topic: Red Hat OpenShift Virtualization release v4.13 is now available with updates to packages and images that fix several bugs and add enhancements.
Details: OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. This advisory contains OpenShift Virtualization v4.13 images.
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-2026-40175

A flaw was found in Axios, a promise-based HTTP client. This vulnerability, known as Prototype Pollution, can be exploited through a specific "Gadget" attack chain. This allows an attacker to escalate a Prototype Pollution vulnerability in a third-party dependency, potentially leading to remote code execution or a full cloud compromise, such as bypassing AWS IMDSv2.

8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64 —
Vendor Fix fix
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64 —
Vendor Fix fix
Threats
Impact Important
CVE-2026-49978

A flaw was found in DOMPurify, a tool designed to sanitize HTML, MathML, and SVG to prevent cross-site scripting (XSS) attacks. When performing in-place sanitization, DOMPurify could fail to properly process content within shadow DOM elements attached to a <template>.content. This oversight allows an attacker to embed malicious code, such as JavaScript, which could then execute when the sanitized template is used by an application, potentially leading to unauthorized actions or information disclosure.

8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64 —
Vendor Fix fix
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64 —
Vendor Fix fix
Threats
Impact Important
CVE-2026-59869

A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-606 - Unchecked Input for Loop Condition
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64 —
Vendor Fix fix
Workaround
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:53735 self
https://access.redhat.com/security/cve/CVE-2026-40175 external
https://access.redhat.com/security/cve/CVE-2026-49978 external
https://access.redhat.com/security/cve/CVE-2026-59869 external
https://access.redhat.com/security/updates/classi… external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-40175 self
https://bugzilla.redhat.com/show_bug.cgi?id=2457432 external
https://www.cve.org/CVERecord?id=CVE-2026-40175 external
https://nvd.nist.gov/vuln/detail/CVE-2026-40175 external
https://github.com/axios/axios/commit/363185461b9… external
https://github.com/axios/axios/pull/10660 external
https://github.com/axios/axios/releases/tag/v1.15.0 external
https://github.com/axios/axios/security/advisorie… external
https://access.redhat.com/security/cve/CVE-2026-49978 self
https://bugzilla.redhat.com/show_bug.cgi?id=2500695 external
https://www.cve.org/CVERecord?id=CVE-2026-49978 external
https://nvd.nist.gov/vuln/detail/CVE-2026-49978 external
https://github.com/cure53/DOMPurify/commit/ca30f0… external
https://github.com/cure53/DOMPurify/releases/tag/3.4.7 external
https://github.com/cure53/DOMPurify/security/advi… external
https://access.redhat.com/security/cve/CVE-2026-59869 self
https://bugzilla.redhat.com/show_bug.cgi?id=2498122 external
https://www.cve.org/CVERecord?id=CVE-2026-59869 external
https://nvd.nist.gov/vuln/detail/CVE-2026-59869 external
https://github.com/nodeca/js-yaml/commit/24f13e79… external
https://github.com/nodeca/js-yaml/commit/59423c6f… external
https://github.com/nodeca/js-yaml/releases/tag/3.15.0 external
https://github.com/nodeca/js-yaml/releases/tag/4.3.0 external
https://github.com/nodeca/js-yaml/security/adviso… external
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          "title": "Vulnerability description"
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          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "baseScore": 8.1,
            "baseSeverity": "HIGH",
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            "integrityImpact": "HIGH",
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      "title": "axios: Axios: Remote Code Execution via Prototype Pollution escalation"
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      "cwe": {
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        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
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      "discovery_date": "2026-07-14T21:05:26.253019+00:00",
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          "text": "2500695"
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          "text": "A flaw was found in DOMPurify, a tool designed to sanitize HTML, MathML, and SVG to prevent cross-site scripting (XSS) attacks. When performing in-place sanitization, DOMPurify could fail to properly process content within shadow DOM elements attached to a \u003ctemplate\u003e.content. This oversight allows an attacker to embed malicious code, such as JavaScript, which could then execute when the sanitized template is used by an application, potentially leading to unauthorized actions or information disclosure.",
          "title": "Vulnerability description"
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          "text": "dompurify: DOMPurify: Cross-site scripting vulnerability allows code execution",
          "title": "Vulnerability summary"
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          "category": "other",
          "text": "This vulnerability in DOMPurify is rated as Important as it allows for cross-site scripting (XSS) attacks. When DOMPurify performs in-place sanitization, it may fail to properly process shadow DOM content within `\u003ctemplate\u003e.content`, enabling an attacker to embed and execute malicious JavaScript. This could lead to unauthorized actions or information disclosure in Red Hat products that utilize DOMPurify for sanitizing untrusted HTML, MathML, or SVG.",
          "title": "Statement"
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          "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"
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      "product_status": {
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          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-49978"
        },
        {
          "category": "external",
          "summary": "RHBZ#2500695",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2500695"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-49978",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-49978"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-49978",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49978"
        },
        {
          "category": "external",
          "summary": "https://github.com/cure53/DOMPurify/commit/ca30f070c360df162a3e3848e80e6fd3c9e74bff",
          "url": "https://github.com/cure53/DOMPurify/commit/ca30f070c360df162a3e3848e80e6fd3c9e74bff"
        },
        {
          "category": "external",
          "summary": "https://github.com/cure53/DOMPurify/releases/tag/3.4.7",
          "url": "https://github.com/cure53/DOMPurify/releases/tag/3.4.7"
        },
        {
          "category": "external",
          "summary": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-rp9w-3fw7-7cwq",
          "url": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-rp9w-3fw7-7cwq"
        }
      ],
      "release_date": "2026-07-14T20:02:46.263000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-11T17:14:45+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:53735"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "dompurify: DOMPurify: Cross-site scripting vulnerability allows code execution"
    },
    {
      "cve": "CVE-2026-59869",
      "cwe": {
        "id": "CWE-606",
        "name": "Unchecked Input for Loop Condition"
      },
      "discovery_date": "2026-07-08T16:01:38.408322+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2498122"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "js-yaml: js-yaml: Denial of Service via crafted YAML documents",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated as Important. Red Hat products utilizing `js-yaml` to process untrusted YAML input are susceptible to a denial of service, as a remote attacker can provide a crafted document that consumes excessive CPU resources. This is considered Important due to the potential for service disruption without requiring authentication or complex attack vectors.",
          "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": [
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64",
          "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-59869"
        },
        {
          "category": "external",
          "summary": "RHBZ#2498122",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2498122"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-59869",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-59869"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59869",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59869"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7",
          "url": "https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4",
          "url": "https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/releases/tag/3.15.0",
          "url": "https://github.com/nodeca/js-yaml/releases/tag/3.15.0"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/releases/tag/4.3.0",
          "url": "https://github.com/nodeca/js-yaml/releases/tag/4.3.0"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m",
          "url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m"
        }
      ],
      "release_date": "2026-07-08T15:15:54.675000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-11T17:14:45+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:53735"
        },
        {
          "category": "workaround",
          "details": "To reduce exposure, restrict the processing of untrusted YAML documents by applications that rely on `js-yaml`. Implement robust input validation and sanitization for all YAML data originating from external or untrusted sources. Consider limiting network access to services that parse YAML content to trusted networks or clients through appropriate firewall configurations.",
          "product_ids": [
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64"
          ]
        }
      ],
      "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": [
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:1151a81a6eb42e62756f6db8aa047e73761bd8cd6543cf01d75c1c55b406154a_arm64",
            "Red Hat Container Native Virtualization 4.13:registry.redhat.io/container-native-virtualization/kubevirt-console-plugin-rhel9@sha256:d2c9474723bd014ddd5a4d93f901feb369ca601cfbe749f132d729fd75ccb435_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "js-yaml: js-yaml: Denial of Service via crafted YAML documents"
    }
  ]
}



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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.