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 CompositeDeepScanLine::readPixels, per-pixel totals are accumulated in vector total_sizes for attacker-controlled large counts across many parts, total_sizes[ptr] wraps modulo 2^32. overall_sample_count is then derived from wrapped totals and used in samples[channel].resize(overall_sample_count). Decode pointer setup/consumption proceeds with true sample counts, and write operations in core unpack (generic_unpack_deep_pointers) overrun the undersized composite sample buffer. This vulnerability is fixed in v3.2.6, v3.3.8, and v3.4.6.
- 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, 2.2.0-11.1ubuntu1, 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, 2.2.0-11ubuntu1, 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, 2.5.4-2, 2.5.7-1, 2.5.7-1ubuntu0.1~esm1, 3.1.13-2, 3.1.13-2build1, 3.1.5-5.1, 3.1.5-5.1build1, 3.1.5-5.1build2, 3.1.5-5.1build3
- Fixed versions
- 2.2.0-10ubuntu2.6+esm4, 2.2.0-11.1ubuntu1.9+esm1, 2.3.0-6ubuntu0.5+esm2, 2.5.7-1ubuntu0.1~esm2, 3.1.13-2ubuntu0.26.04.1~esm1, 3.1.5-5.1ubuntu0.1~esm1
- CVEs
- CVE-2026-27622
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:19 UTC · Revision 1
Source evidence
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In CompositeDeepScanLine::readPixels, per-pixel totals are accumulated in vector total_sizes for attacker-controlled large counts across many parts, total_sizes[ptr] wraps modulo 2^32. overall_sample_count is then derived from wrapped totals and used in samples[channel].resize(overall_sample_count). Decode pointer setup/consumption proceeds with true sample counts, and write operations in core unpack (generic_unpack_deep_pointers) overrun the undersized composite sample buffer. This vulnerability is fixed in v3.2.6, v3.3.8, and v3.4.6.
osv:UBUNTU-CVE-2026-27622
openexr
Fixed versions: 2.2.0-10ubuntu2.6+esm4
openexr
Fixed versions: 2.2.0-11.1ubuntu1.9+esm1
openexr
Fixed versions: 2.3.0-6ubuntu0.5+esm2
openexr
Fixed versions: 2.5.7-1ubuntu0.1~esm2
openexr
Fixed versions: 3.1.5-5.1ubuntu0.1~esm1
openexr
Fixed versions: Not specified
openexr
Fixed versions: 3.1.13-2ubuntu0.26.04.1~esm1
Complete source record
{
"id": "1e4ca761827219c95b47d988d471fb4e8f224099f09db03242d74ddb5a9029da",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-27622",
"method": "structured",
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"title": "UBUNTU-CVE-2026-27622",
"summary": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In CompositeDeepScanLine::readPixels, per-pixel totals are accumulated in vector total_sizes for attacker-controlled large counts across many parts, total_sizes[ptr] wraps modulo 2^32. overall_sample_count is then derived from wrapped totals and used in samples[channel].resize(overall_sample_count). Decode pointer setup/consumption proceeds with true sample counts, and write operations in core unpack (generic_unpack_deep_pointers) overrun the undersized composite sample buffer. This vulnerability is fixed in v3.2.6, v3.3.8, and v3.4.6.",
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"affected_versions": [
{
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{
"value": "2.3.0-6",
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{
"value": "2.3.0-6build1",
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{
"value": "2.3.0-6ubuntu0.1",
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{
"value": "2.3.0-6ubuntu0.2",
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{
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"value": "3.1.5-5.1build1",
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{
"value": "3.1.5-5.1build2",
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{
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"name": {
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"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27622.json"
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{
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},
{
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"package": {
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{
"binary_name": "openexr",
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{
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],
"package": {
"name": "openexr",
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"versions": [
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{
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{
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}
},
{
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],
"package": {
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"ecosystem": "Ubuntu:Pro:26.04:LTS"
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"versions": [
"3.1.13-2",
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"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27622.json"
},
"ecosystem_specific": {
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{
"binary_name": "libopenexr-3-1-30",
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{
"binary_name": "openexr",
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],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
}
],
"modified": "2026-10-27T04:17:54.149385842Z",
"provider": "osv",
"upstream": [
"CVE-2026-27622"
],
"references": [
"https://ubuntu.com/security/CVE-2026-27622",
"https://www.cve.org/CVERecord?id=CVE-2026-27622",
"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-cr4v-6jm6-4963",
"https://ubuntu.com/security/notices/USN-8259-1"
]
},
"related_cves": [
{
"value": "CVE-2026-27622",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 460320,
"published_at": "2026-03-03T23:15:00+00:00"
}