CVE-2026-59983
OpenEXR: Out-of-bounds read in DeepTiledInputFile sample-count table decode on ILP32
- 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. OpenEXR versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable on ILP32 builds to an out-of-bounds read. The vulnerability is reached when a crafted uncompressed deep-tile EXR causes the sample-count table size calculation in OpenEXRCore decoding.c to wrap before unpack_sample_table() iterates over the full attacker-controlled tile dimensions, allowing denial of service. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
Public exploit
A reference of the record is tagged as an exploit or proof of concept: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
Timeline
ID reserved
By GitHub_M
- 49 days later
· 49 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVDNVD · Deferred | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 93% of all CVEs (7 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: Medium 5.5.
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-p42q-g5c9-mh9w (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/AcademySoftwareFoundation/openexr/commit/0efec58d2d28a0ee322f5028dee6fb57d459580e (opens in a new tab)x_refsource_MISC
- https://github.com/AcademySoftwareFoundation/openexr/commit/78e91146fceeee317820a146ba99a96f380945b8 (opens in a new tab)x_refsource_MISC
- https://github.com/AcademySoftwareFoundation/openexr/commit/f0e404f7298cd8563a1d30a64a1c982dbd68fc49 (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-2026-59983)Record last updated .