HighFix available
openexr — security advisory
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.
- Products
- openexr
- Affected versions
- 3.1.13-1, 3.1.13-2, 3.1.5-5, 3.1.5-5.1, 3.1.5-5.1+hurd.1, 3.4.14-0.1, 3.4.15+ds-1, 3.4.16+ds-1, 3.4.6+ds-1, 3.4.6+ds-2, 3.4.6+ds-3, 3.4.6+ds-4, 3.5.2+ds-1
- Fixed versions
- 3.4.14-0.1
- CVEs
- CVE-2026-34544
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:59 UTC · Revision 2
Source evidence
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.
osv:DEBIAN-CVE-2026-34544
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: 3.4.14-0.1
Complete source record
{
"id": "b9f9aa5bc5b45a4b71af4bdb524646e0b5e26a51ff613aed321cbffc529e97bf",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-34544",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-34544",
"summary": "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.",
"evidence": "osv:DEBIAN-CVE-2026-34544",
"products": [
{
"name": {
"value": "openexr",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.1.13-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.1.13-2",
"evidence": "/affected/0/versions"
},
{
"value": "3.1.5-5",
"evidence": "/affected/0/versions"
},
{
"value": "3.1.5-5.1",
"evidence": "/affected/0/versions"
},
{
"value": "3.1.5-5.1+hurd.1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.14-0.1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.15+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.16+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.6+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.6+ds-2",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.6+ds-3",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.6+ds-4",
"evidence": "/affected/0/versions"
},
{
"value": "3.5.2+ds-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "openexr",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.1.13-2",
"evidence": "/affected/1/versions"
},
{
"value": "3.4.14-0.1",
"evidence": "/affected/1/versions"
},
{
"value": "3.4.15+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.4.16+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.4.6+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.4.6+ds-2",
"evidence": "/affected/1/versions"
},
{
"value": "3.4.6+ds-3",
"evidence": "/affected/1/versions"
},
{
"value": "3.4.6+ds-4",
"evidence": "/affected/1/versions"
},
{
"value": "3.5.2+ds-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "openexr",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.14-0.1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "3.1.13-2",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.6+ds-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.6+ds-2",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.6+ds-3",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.6+ds-4",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-34544",
"aliases": [
"DEBIAN-CVE-2026-34544"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "openexr",
"purl": "pkg:deb/debian/openexr?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.1.13-1",
"3.1.13-2",
"3.1.5-5",
"3.1.5-5.1",
"3.1.5-5.1+hurd.1",
"3.4.14-0.1",
"3.4.15+ds-1",
"3.4.16+ds-1",
"3.4.6+ds-1",
"3.4.6+ds-2",
"3.4.6+ds-3",
"3.4.6+ds-4",
"3.5.2+ds-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34544.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "openexr",
"purl": "pkg:deb/debian/openexr?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.1.13-2",
"3.4.14-0.1",
"3.4.15+ds-1",
"3.4.16+ds-1",
"3.4.6+ds-1",
"3.4.6+ds-2",
"3.4.6+ds-3",
"3.4.6+ds-4",
"3.5.2+ds-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34544.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.14-0.1"
}
]
}
],
"package": {
"name": "openexr",
"purl": "pkg:deb/debian/openexr?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.1.13-2",
"3.4.6+ds-1",
"3.4.6+ds-2",
"3.4.6+ds-3",
"3.4.6+ds-4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34544.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:02:57.291696480Z",
"provider": "osv",
"upstream": [
"CVE-2026-34544"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-34544"
]
},
"related_cves": [
{
"value": "CVE-2026-34544",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 453014,
"published_at": "2026-04-01T21:17:01.48+00:00"
}