MediumFix 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 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. For a large enough width, the calculation overflows and later decoder stores operate on a wrapped pointer outside the allocated rowBlock backing store. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.
- 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-2026-34589
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:51 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 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. For a large enough width, the calculation overflows and later decoder stores operate on a wrapped pointer outside the allocated rowBlock backing store. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.
osv:DEBIAN-CVE-2026-34589
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: 3.4.14-0.1
Complete source record
{
"id": "467b7054a243676c8f9221580b552ea606f31a9067f8e8461a8784709ce9efe1",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-34589",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-34589",
"summary": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. For a large enough width, the calculation overflows and later decoder stores operate on a wrapped pointer outside the allocated rowBlock backing store. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.",
"evidence": "osv:DEBIAN-CVE-2026-34589",
"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"
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{
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{
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{
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{
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{
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{
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{
"value": "3.4.6+ds-4",
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},
{
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{
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{
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{
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"evidence": "/affected/1/versions"
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{
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{
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{
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"evidence": "/affected/1/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"
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{
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{
"name": {
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"affected_versions": [
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"evidence": "/affected/2/versions"
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{
"value": "3.4.6+ds-1",
"evidence": "/affected/2/versions"
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{
"value": "3.4.6+ds-2",
"evidence": "/affected/2/versions"
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{
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{
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}
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}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2026-34589",
"aliases": [
"DEBIAN-CVE-2026-34589"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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"package": {
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"purl": "pkg:deb/debian/openexr?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
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"3.4.6+ds-3",
"3.4.6+ds-4",
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],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34589.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
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],
"package": {
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"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-2026-34589.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "3.4.14-0.1"
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}
],
"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-2026-34589.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-27T10:01:04.576138895Z",
"provider": "osv",
"upstream": [
"CVE-2026-34589"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-34589"
]
},
"related_cves": [
{
"value": "CVE-2026-34589",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 461368,
"published_at": "2026-04-06T16:16:36.04+00:00"
}