High
openimageio — security advisory
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A zbuffer-only tiled iff is exposed with a 16-bit public imagespec while the decoder retains a 32-bit internal pixel size. iffinput::read_native_tile() copies according to m_header.pixel_bytes() rather than imagespec::tile_bytes(true), and a failed read can leave m_buf nonempty so a later call copies partially initialized data into the undersized caller buffer, resulting in a heap out-of-bounds write and memory corruption. The affected implementation is identified by src/iff.imageio/iffinput.cpp, IffInput::read_native_tile(), ImageSpec::tile_bytes(true), m_header.pixel_bytes(), ZBUFFER, and m_buf, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.
- Products
- openimageio
- Affected versions
- 1.5.17~dfsg0-1ubuntu2, 1.5.20~dfsg0-1ubuntu2, 1.5.23~dfsg0-1ubuntu1, 1.6.10~dfsg0-1ubuntu1, 1.6.10~dfsg0-2ubuntu1, 1.6.11~dfsg0-1ubuntu1, 1.6.11~dfsg0-1ubuntu1+esm2, 1.6.17~dfsg0-1ubuntu5, 1.6.9~dfsg0-4ubuntu1, 1.7.17~dfsg0-1ubuntu2, 1.7.17~dfsg0-1ubuntu2+esm1, 2.0.10~dfsg0-1, 2.0.11~dfsg0-1, 2.0.12~dfsg0-1, 2.0.12~dfsg0-1build1, 2.0.12~dfsg0-1build2, 2.1.10.1~dfsg0-5ubuntu4, 2.1.10.1~dfsg0-5ubuntu5, 2.1.12.0~dfsg0-1, 2.1.12.0~dfsg0-1ubuntu0.1~esm1, 2.2.10.1+dfsg-1build1, 2.2.18.0+dfsg-1, 2.2.18.0+dfsg-1build2, 2.2.18.0+dfsg-1ubuntu2, 2.4.14.0+dfsg-1, 2.4.16.0+dfsg-1, 2.4.16.0+dfsg-1build1, 2.4.17.0+dfsg-1, 2.4.17.0+dfsg-1.1build3, 2.4.17.0+dfsg-1.1build4, 2.4.17.0+dfsg-1.1ubuntu0.1~esm1, 2.4.17.0+dfsg-1build1, 2.5.18.0+dfsg-1build2, 2.5.19.1+dfsg-1build1, 2.5.19.1+dfsg-1build3, 2.5.19.1+dfsg-1build5, 2.5.19.1+dfsg-2, 2.5.19.1+dfsg-2build1, 2.5.19.1+dfsg-2build2, 2.5.19.1+dfsg-2ubuntu0.1~esm1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-63419
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:12 UTC · Revision 1
Source evidence
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A zbuffer-only tiled iff is exposed with a 16-bit public imagespec while the decoder retains a 32-bit internal pixel size. iffinput::read_native_tile() copies according to m_header.pixel_bytes() rather than imagespec::tile_bytes(true), and a failed read can leave m_buf nonempty so a later call copies partially initialized data into the undersized caller buffer, resulting in a heap out-of-bounds write and memory corruption. The affected implementation is identified by src/iff.imageio/iffinput.cpp, IffInput::read_native_tile(), ImageSpec::tile_bytes(true), m_header.pixel_bytes(), ZBUFFER, and m_buf, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.
osv:UBUNTU-CVE-2026-63419
openimageio
Fixed versions: Not specified
openimageio
Fixed versions: Not specified
openimageio
Fixed versions: Not specified
openimageio
Fixed versions: Not specified
openimageio
Fixed versions: Not specified
openimageio
Fixed versions: Not specified
openimageio
Fixed versions: Not specified
Complete source record
{
"id": "75c3e1339047c6385277a42589f5630d556ec6e8861fb03e3b9d8478a9aacdbc",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-63419",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-63419",
"summary": "OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A zbuffer-only tiled iff is exposed with a 16-bit public imagespec while the decoder retains a 32-bit internal pixel size. iffinput::read_native_tile() copies according to m_header.pixel_bytes() rather than imagespec::tile_bytes(true), and a failed read can leave m_buf nonempty so a later call copies partially initialized data into the undersized caller buffer, resulting in a heap out-of-bounds write and memory corruption. The affected implementation is identified by src/iff.imageio/iffinput.cpp, IffInput::read_native_tile(), ImageSpec::tile_bytes(true), m_header.pixel_bytes(), ZBUFFER, and m_buf, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.",
"evidence": "osv:UBUNTU-CVE-2026-63419",
"products": [
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{
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"evidence": "/affected/3/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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"name": {
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},
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"affected_versions": [
{
"value": "2.5.19.1+dfsg-2",
"evidence": "/affected/5/versions"
},
{
"value": "2.5.19.1+dfsg-2build1",
"evidence": "/affected/5/versions"
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{
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"severity": "high",
"structured": {
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"aliases": [
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"metrics": [
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{
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],
"modified": "2026-10-17T13:00:32.412838365Z",
"provider": "osv",
"upstream": [
"CVE-2026-63419"
],
"references": [
"https://ubuntu.com/security/CVE-2026-63419",
"https://www.cve.org/CVERecord?id=CVE-2026-63419",
"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-w6wc-gcf4-5pj2",
"https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5268",
"https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/9cda48b150294c7f024e680a6c9b0402e50f4816",
"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0",
"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0"
]
},
"related_cves": [
{
"value": "CVE-2026-63419",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360677,
"published_at": "2026-09-18T16:17:00+00:00"
}