{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "3.2.0"
              },
              {
                "fixed": "3.2.7"
              },
              {
                "introduced": "3.3.0"
              },
              {
                "fixed": "3.3.9"
              },
              {
                "introduced": "3.4.0"
              },
              {
                "fixed": "3.4.8"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "456bf42dc2fddb647c0e9ab911656e5cf757fc36"
            },
            {
              "fixed": "f6f9cee0da36e8e806f7c9186f737db487782b69"
            },
            {
              "introduced": "c7d3eac70ccde2c4ed484c6638b83ba872f71464"
            },
            {
              "fixed": "8bb3562bd7bd833bd052224c596cb4aba94afb1b"
            },
            {
              "introduced": "20a65852895894434bea88613f6d29ac8e88bd6e"
            },
            {
              "fixed": "adbd2a588b47b1f6d02557571d8e36a91084da8a"
            },
            {
              "fixed": "35e7aa35e22c1975606be86e859f31cc1fc598ee"
            }
          ],
          "repo": "https://github.com/academysoftwarefoundation/openexr",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-h762-rhv3-h25v"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-190",
      "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34544.json"
  },
  "details": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.8, a crafted B44 or B44A EXR file can cause an out-of-bounds write in any application that decodes it via exr_decoding_run(). Consequences range from immediate crash (most likely) to corruption of adjacent heap allocations (layout-dependent). This issue has been patched in version 3.4.8.",
  "id": "CVE-2026-34544",
  "modified": "2026-07-15T01:49:01.434551795Z",
  "published": "2026-04-01T20:55:30.493Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h762-rhv3-h25v"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34544.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34544"
    },
    {
      "type": "FIX",
      "url": "https://github.com/AcademySoftwareFoundation/openexr/commit/35e7aa35e22c1975606be86e859f31cc1fc598ee"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenEXR: integer overflow to OOB write in uncompress_b44_impl()"
}