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. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, `internal_dwa_compressor.h:1040` performs `chan->width * chan->bytes_per_element` in `int32` arithmetic without a `(size_t)` cast. This is the same overflow pattern fixed in other decoders by CVE-2026-34589/34588/34544, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses `internal_dwa_compressor.h:1040`.
- 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-2026-40250
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:50 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. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, `internal_dwa_compressor.h:1040` performs `chan->width * chan->bytes_per_element` in `int32` arithmetic without a `(size_t)` cast. This is the same overflow pattern fixed in other decoders by CVE-2026-34589/34588/34544, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses `internal_dwa_compressor.h:1040`.
osv:DEBIAN-CVE-2026-40250
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: 3.4.14-0.1
Complete source record
{
"id": "d4e808e33ce2d706352da5ec723b091a9989ea4427f5be654c59543591adeab4",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-40250",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-40250",
"summary": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, `internal_dwa_compressor.h:1040` performs `chan->width * chan->bytes_per_element` in `int32` arithmetic without a `(size_t)` cast. This is the same overflow pattern fixed in other decoders by CVE-2026-34589/34588/34544, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses `internal_dwa_compressor.h:1040`.",
"evidence": "osv:DEBIAN-CVE-2026-40250",
"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"
},
{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
"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"
}
]
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{
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"evidence": "/affected/1/versions"
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{
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"evidence": "/affected/1/versions"
},
{
"value": "3.4.15+ds-1",
"evidence": "/affected/1/versions"
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{
"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",
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},
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"fixed_versions": [
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"evidence": "/affected/2/ranges"
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"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-2026-40250",
"aliases": [
"DEBIAN-CVE-2026-40250"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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],
"package": {
"name": "openexr",
"purl": "pkg:deb/debian/openexr?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
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"3.4.14-0.1",
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"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-2026-40250.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
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"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-2026-40250.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-2026-40250.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-27T10:01:12.550416121Z",
"provider": "osv",
"upstream": [
"CVE-2026-40250"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-40250"
]
},
"related_cves": [
{
"value": "CVE-2026-40250",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 461341,
"published_at": "2026-04-21T02:16:08.213+00:00"
}