{
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    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "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 Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
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      "generator": {
        "date": "2026-11-05T15:05:30Z",
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        {
          "date": "2026-10-08T19:20:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-11-02T20:54:47Z",
          "number": "2",
          "summary": "Official Publication"
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        {
          "date": "2026-11-04T16:48:26Z",
          "number": "3",
          "summary": "Update document"
        },
        {
          "date": "2026-11-05T15:05:30Z",
          "number": "4",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "4"
    },
    "title": "Security update on CVE-2026-88648"
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-88648",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "notes": [
        {
          "category": "description",
          "text": "In GnuTLS v3.8.13, an excluded msUPN/SRV otherName is never checked. NOTE: the Supplier does not consider this an actionable security vulnerability because of its \"threat model doesn't consider attacks only possible by modifying anything within the trust boundary (private keys, trusted certificate authorities and their issued certificates including intermediate CAs, etc.)\" policy.",
          "title": "Vulnerability description"
        },
        {
          "category": "other",
          "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.",
          "title": "Statement"
        }
      ],
      "product_status": {
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-88648"
        },
        {
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          "summary": "https://gist.github.com/lkloliver/1f2a97cb8d0b31aa27b6bd0354358d7d",
          "url": "https://gist.github.com/lkloliver/1f2a97cb8d0b31aa27b6bd0354358d7d"
        },
        {
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          "summary": "https://www.rfc-editor.org/rfc/rfc5280#section-4.2.1.10",
          "url": "https://www.rfc-editor.org/rfc/rfc5280#section-4.2.1.10"
        },
        {
          "category": "external",
          "summary": "https://www.rfc-editor.org/rfc/rfc5280#section-6.1.4",
          "url": "https://www.rfc-editor.org/rfc/rfc5280#section-6.1.4"
        },
        {
          "category": "external",
          "summary": "https://gitlab.com/gnutls/gnutls/-/blob/e2169a87c7fb91935c2845088204b102baed4c5f/SECURITY.md",
          "url": "https://gitlab.com/gnutls/gnutls/-/blob/e2169a87c7fb91935c2845088204b102baed4c5f/SECURITY.md"
        },
        {
          "category": "external",
          "summary": "https://gitlab.com/gnutls/gnutls/-/work_items/1965",
          "url": "https://gitlab.com/gnutls/gnutls/-/work_items/1965"
        },
        {
          "category": "external",
          "summary": "https://github.com/lkloliver/poc/tree/main/CVE-2026-88648",
          "url": "https://github.com/lkloliver/poc/tree/main/CVE-2026-88648"
        }
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      "release_date": "2026-10-08T19:20:00Z",
      "threats": [
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          "category": "impact",
          "details": "Moderate"
        },
        {
          "category": "impact",
          "date": "2026-11-04T14:07:01.220483Z",
          "details": "Not affected: the vulnerable name constraints enforcement code is absent from this package, which predates that feature in its base release.",
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}