ffmpeg-8.1 — security advisory

{
  "id": "29d174b47d6af419366e23269dced4f4d7fbe9934e84edd66f0367738f5da396",
  "url": "https://osv.dev/vulnerability/CGA-w4x2-g389-xjqj",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-w4x2-g389-xjqj",
    "summary": "CGA-w4x2-g389-xjqj",
    "evidence": "osv:CGA-w4x2-g389-xjqj",
    "products": [
      {
        "name": {
          "value": "ffmpeg-8.1",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.1.3-r0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ffmpeg-8.1",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.1.3-r0",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CGA-w4x2-g389-xjqj",
      "aliases": [
        "CGA-w4x2-g389-xjqj"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8.1.3-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "ffmpeg-8.1",
            "purl": "pkg:apk/chainguard/ffmpeg-8.1?arch=x86_64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-w4x2-g389-xjqj.json",
            "chainguard": {
              "applies_to_subpackages": false
            }
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "ffmpeg-8.1",
                "component_purl": "pkg:apk/ffmpeg-8.1@8.1.2-r4",
                "component_type": "apk",
                "component_version": "8.1.2-r4",
                "component_location": "/.PKGINFO",
                "latest_event_status": "fixed",
                "latest_event_timestamp": "2026-10-27T09:33:33Z"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8.1.3-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "ffmpeg-8.1",
            "purl": "pkg:apk/wolfi/ffmpeg-8.1?arch=x86_64",
            "ecosystem": "Wolfi"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-w4x2-g389-xjqj.json",
            "chainguard": {
              "applies_to_subpackages": false
            }
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "ffmpeg-8.1",
                "component_purl": "pkg:apk/ffmpeg-8.1@8.1.2-r4",
                "component_type": "apk",
                "component_version": "8.1.2-r4",
                "component_location": "/.PKGINFO",
                "latest_event_status": "fixed",
                "latest_event_timestamp": "2026-10-27T09:33:33Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-27T19:45:18.652724050Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-70631",
        "GHSA-5f73-3r3j-p8mr"
      ],
      "references": [
        "https://code.ffmpeg.org/FFmpeg/FFmpeg",
        "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/a991b1fecbd8c9e6f4fc31c191bd12e4be27dbf7",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70631.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-70631",
        "https://www.vulncheck.com/advisories/ffmpeg-uninitialized-heap-memory-read-in-tiff-decoder",
        "https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23899",
        "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/2f234ea34c81288e3840fca632dd16481d8de39f",
        "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/3c287af3affe1286350faa69c02bcc5d49de18bb"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-70631",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 485236,
  "published_at": "2026-09-02T22:13:19+00:00"
}