gnutls26, gnutls28 — security advisory

{
  "id": "053e64566cb5e16b8874a298208441e7689637b8d8a2319464ab4bd13f048193",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-95210",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-95210",
    "summary": "Improper certificate validation in gnutls v3.8.13 causes the application to accept certificates containing invalid extensions.",
    "evidence": "osv:UBUNTU-CVE-2026-95210",
    "products": [
      {
        "name": {
          "value": "gnutls26",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
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          {
            "value": "2.12.23-1ubuntu4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-1ubuntu5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2.4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2.8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "2.12.23-12ubuntu2.10+esm1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
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        },
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            "evidence": "/affected/1/versions"
          },
          {
            "value": "3.4.10-4ubuntu1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "3.4.10-4ubuntu1.1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "3.4.10-4ubuntu1.2",
            "evidence": "/affected/1/versions"
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          {
            "value": "3.4.10-4ubuntu1.3",
            "evidence": "/affected/1/versions"
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          {
            "value": "3.4.10-4ubuntu1.4",
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          {
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          {
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            "evidence": "/affected/1/versions"
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          {
            "value": "3.4.10-4ubuntu1.9",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "3.4.10-4ubuntu1.9+esm1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "3.4.10-4ubuntu1.9+esm2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "3.4.10-4ubuntu1.9+esm3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "3.4.10-4ubuntu1.9+esm4",
            "evidence": "/affected/1/versions"
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        ]
      },
      {
        "name": {
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            "evidence": "/affected/2/versions"
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            "evidence": "/affected/2/versions"
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          {
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            "evidence": "/affected/2/versions"
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          {
            "value": "3.5.18-1ubuntu1.1",
            "evidence": "/affected/2/versions"
          },
          {
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            "evidence": "/affected/2/versions"
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          {
            "value": "3.5.18-1ubuntu1.3",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "3.5.18-1ubuntu1.4",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "3.5.18-1ubuntu1.5",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "3.5.18-1ubuntu1.6",
            "evidence": "/affected/2/versions"
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            "value": "3.5.18-1ubuntu1.6+esm1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "3.5.18-1ubuntu1.6+esm2",
            "evidence": "/affected/2/versions"
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          {
            "value": "3.5.18-1ubuntu1.6+esm3",
            "evidence": "/affected/2/versions"
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            "value": "3.5.18-1ubuntu1.6+esm4",
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            "evidence": "/affected/3/versions"
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          {
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            "evidence": "/affected/3/versions"
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          {
            "value": "3.6.13-2ubuntu1.6",
            "evidence": "/affected/3/versions"
          },
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            "value": "3.6.13-2ubuntu1.7",
            "evidence": "/affected/3/versions"
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            "evidence": "/affected/3/versions"
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            "evidence": "/affected/3/versions"
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            "evidence": "/affected/3/versions"
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            "evidence": "/affected/3/versions"
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            "value": "3.6.13-2ubuntu1.12+esm2",
            "evidence": "/affected/3/versions"
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            "value": "3.6.13-2ubuntu1.12+esm3",
            "evidence": "/affected/3/versions"
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        ]
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      {
        "name": {
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            "evidence": "/affected/4/versions"
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            "evidence": "/affected/4/versions"
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            "evidence": "/affected/4/versions"
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            "evidence": "/affected/9/versions"
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            "evidence": "/affected/9/versions"
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        "name": {
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        },
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            "evidence": "/affected/10/versions"
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            "evidence": "/affected/10/versions"
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            "evidence": "/affected/10/versions"
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    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2026-95210",
      "aliases": [
        "UBUNTU-CVE-2026-95210"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
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          },
          "ecosystem_specific": {
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          },
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            "3.5.18-1ubuntu1.6+esm4"
          ],
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          },
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      "provider": "osv",
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        "https://www.cve.org/CVERecord?id=CVE-2026-95210",
        "https://gist.github.com/lkloliver/4aad23689202720c4068f43b3c6069c7",
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  "source_id": "core-osv",
  "document_id": 405419,
  "published_at": "2026-10-08T18:18:00+00:00"
}