Security advisory

{
  "id": "3d9cd59402bb369556d8cd8b30cf2568423e835724515074868e2f8541e4e1a0",
  "url": "https://osv.dev/vulnerability/CVE-2026-20911",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-20911",
    "summary": "A heap-based buffer overflow vulnerability exists in the HuffTable::initval functionality of LibRaw Commit 0b56545 and Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.",
    "evidence": "osv:CVE-2026-20911",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-20911",
      "aliases": [
        "CVE-2026-20911"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libraw/libraw",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0b56545a4f828743f28a4345cdfdd4c49f9f9a2a"
                },
                {
                  "last_affected": "b860248a89d9082b8e0a1e202e516f46af9adb29"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libraw:libraw:0.22.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.22.0"
                      },
                      {
                        "last_affected": "0.22.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:libraw:libraw:0.22.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.22.1"
                      },
                      {
                        "last_affected": "0.22.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.22.0",
            "0.22.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-20911.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.604780342Z",
      "provider": "osv",
      "references": [
        "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20911.json",
        "https://talosintelligence.com/vulnerability_reports/TALOS-2026-2330",
        "https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2330",
        "https://access.redhat.com/security/cve/CVE-2026-20911",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/20xxx/CVE-2026-20911.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-20911",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2455959"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-131"
        ],
        "cna_assigner": "talos",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "Commit 0b56545"
                  },
                  {
                    "last_affected": "Commit 0b56545"
                  },
                  {
                    "introduced": "Commit d20315b"
                  },
                  {
                    "last_affected": "Commit d20315b"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/20xxx/CVE-2026-20911.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-20911",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509254,
  "published_at": "2026-04-07T13:49:31.223+00:00"
}