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 exrdecodingrun(). 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.
{
"sources": [
{
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-34544",
"database_specific": {
"status": "Analyzed"
},
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34544",
"modified": "2026-04-07T20:13:31.237Z",
"id": "CVE-2026-34544",
"imported": "2026-04-17T13:59:24.564Z",
"published": "2026-04-01T21:17:01.480Z"
}
],
"license": "CC-BY-4.0"
}