MediumFix available
openexr — security advisory
OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.
- 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
- Fixed versions
- 3.4.16+ds-1
- CVEs
- CVE-2026-88384
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 17:44 UTC · Revision 1
Source evidence
OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.
osv:DEBIAN-CVE-2026-88384
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: 3.4.16+ds-1
Complete source record
{
"id": "8b90bd938a4783df0458d933983a10be650729f431fb6e3ad0d08b50cecc6ee0",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-88384",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-88384",
"summary": "OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.",
"evidence": "osv:DEBIAN-CVE-2026-88384",
"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"
}
]
},
{
"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"
}
]
},
{
"name": {
"value": "openexr",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.16+ds-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "3.1.13-2",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.14-0.1",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.15+ds-1",
"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": "medium",
"structured": {
"id": "DEBIAN-CVE-2026-88384",
"aliases": [
"DEBIAN-CVE-2026-88384"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88384.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"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88384.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.16+ds-1"
}
]
}
],
"package": {
"name": "openexr",
"purl": "pkg:deb/debian/openexr?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.1.13-2",
"3.4.14-0.1",
"3.4.15+ds-1",
"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-2026-88384.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-22T06:00:39.213854534Z",
"provider": "osv",
"upstream": [
"CVE-2026-88384"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-88384"
]
},
"related_cves": [
{
"value": "CVE-2026-88384",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 404562,
"published_at": "2026-09-24T17:17:07.907+00:00"
}