CVE-2026-59189
OpenEXR: Out-of-bounds read in DeepImageChannel::row() for non-zero dataWindow origin
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In OpenEXRUtil versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.12, the documented TypedDeepImageChannel<T>::row() API can return an out-of-bounds pointer when a deep image has a non-zero dataWindow origin, resulting in a heap out-of-bounds read and crash, with potential information disclosure under a controlled heap layout. The flaw arises because ImfDeepImageChannel uses two conflicting coordinate models: at(x, y) uses absolute coordinates (with _base offset by dataWindow.min), while row(r) is documented as 0-based logical access. For a non-zero dataWindow.min, row(0) therefore points outside the _sampleListPointers allocation instead of at the first logical row. This issue is fixed in versions 3.3.13 and 3.4.13.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H |
| NVDNVD · Deferred | 3.1 | High7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.31% · top 76% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Weakness
Affected products
AcademySoftwareFoundation · openexr
- affected < 3.2.11
- affected >= 3.3.0, < 3.3.13
- affected >= 3.4.0, < 3.4.14
References (4)
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-hwmv-39v6-739m (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/AcademySoftwareFoundation/openexr/commit/37f03b6ed90f3dd9910f31de3a40f25f2bc2aca1 (opens in a new tab)x_refsource_MISC
- https://github.com/AcademySoftwareFoundation/openexr/commit/55b7958ecb5ac32c427ff39c1e063f6f7bbee77c (opens in a new tab)x_refsource_MISC
- https://github.com/AcademySoftwareFoundation/openexr/commit/aef02224ba282a802de65d16c49c1cdb82089dec (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-59189)Record last updated .