High
openexr — security advisory
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, exrmultiview can write past a heap allocation when it combines two attacker-supplied, individually valid scanline EXR files whose union dataWindow is not aligned to one view's channel subsampling. The utility allocates sampled channel storage using a truncated union_width / xSampling, then reads the sampled input through a Slice based on the misaligned union window, producing a heap out-of-bounds write. The trigger is normal public-tool processing, such as exrmultiview left A.exr right B.exr out.exr with crafted but valid inputs, so this is not solely an API or caller-precondition issue. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
- Products
- openexr
- Affected versions
- 2.2.0-10ubuntu2, 2.2.0-10ubuntu2.1, 2.2.0-10ubuntu2.2, 2.2.0-10ubuntu2.3, 2.2.0-10ubuntu2.4, 2.2.0-10ubuntu2.6, 2.2.0-10ubuntu2.6+esm1, 2.2.0-10ubuntu2.6+esm2, 2.2.0-10ubuntu2.6+esm3, 2.2.0-10ubuntu2.6+esm4, 2.2.0-11.1ubuntu1, 2.2.0-11.1ubuntu1.1, 2.2.0-11.1ubuntu1.2, 2.2.0-11.1ubuntu1.3, 2.2.0-11.1ubuntu1.4, 2.2.0-11.1ubuntu1.6, 2.2.0-11.1ubuntu1.7, 2.2.0-11.1ubuntu1.8, 2.2.0-11.1ubuntu1.9, 2.2.0-11.1ubuntu1.9+esm1, 2.2.0-11ubuntu1, 2.2.0-1ubuntu3, 2.2.0-7ubuntu1, 2.2.0-9ubuntu1, 2.2.1-4.1ubuntu1, 2.3.0-6, 2.3.0-6build1, 2.3.0-6ubuntu0.1, 2.3.0-6ubuntu0.2, 2.3.0-6ubuntu0.3, 2.3.0-6ubuntu0.5, 2.3.0-6ubuntu0.5+esm1, 2.3.0-6ubuntu0.5+esm2, 2.5.4-2, 2.5.7-1, 2.5.7-1ubuntu0.1~esm1, 2.5.7-1ubuntu0.1~esm2, 3.1.13-2, 3.1.13-2build1, 3.1.13-2ubuntu0.26.04.1~esm1, 3.1.5-5.1, 3.1.5-5.1build1, 3.1.5-5.1build2, 3.1.5-5.1build3, 3.1.5-5.1ubuntu0.1~esm1, 3.4.6+ds-4ubuntu3
- Fixed versions
- Not specified
- CVEs
- CVE-2026-68515
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:50 UTC · Revision 1
Source evidence
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, exrmultiview can write past a heap allocation when it combines two attacker-supplied, individually valid scanline EXR files whose union dataWindow is not aligned to one view's channel subsampling. The utility allocates sampled channel storage using a truncated union_width / xSampling, then reads the sampled input through a Slice based on the misaligned union window, producing a heap out-of-bounds write. The trigger is normal public-tool processing, such as exrmultiview left A.exr right B.exr out.exr with crafted but valid inputs, so this is not solely an API or caller-precondition issue. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
osv:UBUNTU-CVE-2026-68515
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
Complete source record
{
"id": "ab404b64f065d7704c8b81baabfa0c78532661915cb68c93bfea0dc8d55b61fa",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-68515",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-68515",
"summary": "OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, exrmultiview can write past a heap allocation when it combines two attacker-supplied, individually valid scanline EXR files whose union dataWindow is not aligned to one view's channel subsampling. The utility allocates sampled channel storage using a truncated union_width / xSampling, then reads the sampled input through a Slice based on the misaligned union window, producing a heap out-of-bounds write. The trigger is normal public-tool processing, such as exrmultiview left A.exr right B.exr out.exr with crafted but valid inputs, so this is not solely an API or caller-precondition issue. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.",
"evidence": "osv:UBUNTU-CVE-2026-68515",
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{
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{
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{
"value": "2.3.0-6ubuntu0.1",
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{
"value": "2.3.0-6ubuntu0.2",
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{
"value": "3.1.5-5.1",
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},
{
"value": "3.1.5-5.1build1",
"evidence": "/affected/4/versions"
},
{
"value": "3.1.5-5.1build2",
"evidence": "/affected/4/versions"
},
{
"value": "3.1.5-5.1build3",
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"aliases": [
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"ecosystem_specific": {
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},
"ecosystem_specific": {
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{
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},
{
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],
"modified": "2026-10-17T12:59:21.559705832Z",
"provider": "osv",
"upstream": [
"CVE-2026-68515"
],
"references": [
"https://ubuntu.com/security/CVE-2026-68515",
"https://www.cve.org/CVERecord?id=CVE-2026-68515",
"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-gjf7-wjjw-xq56",
"https://github.com/AcademySoftwareFoundation/openexr/commit/77ee19c021398b1c56f32c3af8347e365dbd4f33",
"https://github.com/AcademySoftwareFoundation/openexr/commit/c644ac2dfeac82939c81a8551d6f4b7859f63add",
"https://github.com/AcademySoftwareFoundation/openexr/commit/e2300a3d54a93d20a36a86b82f3a506c4c91476f"
]
},
"related_cves": [
{
"value": "CVE-2026-68515",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 359631,
"published_at": "2026-08-25T20:17:00+00:00"
}