CVE catalog
CVE-2026-40250
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, a
- Severity
- High · CVSS 8.4
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.45% · Oct 25, 2026
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, `internal_dwa_compressor.h:1040` performs `chan->width * chan->bytes_per_element` in `int32` arithmetic without a `(size_t)` cast. This is the same overflow pattern fixed in other decoders by CVE-2026-34589/34588/34544, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses `internal_dwa_compressor.h:1040`.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | openexr | sid | 3.4.16+ds-1 | fixed |
| Debian | openexr | forky | 3.4.16+ds-1 | fixed |
| Debian | openexr | trixie | 3.1.13-2 | vulnerable |
| Debian | openexr | bookworm | 3.1.5-5 | vulnerable |
| Cpe | openexr | Not reported | Not reported | vulnerable |
| Cpe | openexr | Not reported | 3.2.8 | fixed |
| Cpe | openexr | Not reported | 3.3.10 | fixed |
| Cpe | openexr | Not reported | 3.4.10 | fixed |
| Cpe | openexr | Not reported | 3.4.10 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | openexr | source | sid | 3.4.14-0.1 | not yet assigned | Not reported | [1134642] |
| Debian | openexr | source | forky | 3.4.14-0.1 | not yet assigned | Not reported | [1134642] |
| Debian | openexr | source | trixie | (unfixed) | not yet assigned | Not reported | [1134642] |
| Debian | openexr | source | bookworm | (unfixed) | not yet assigned | Not reported | [1134642] |
| Cpe | openexr | cpe | Not reported | 3.2.8 | Not reported | Not reported | Not reported |
| Cpe | openexr | cpe | Not reported | 3.3.10 | Not reported | Not reported | Not reported |
| Cpe | openexr | cpe | Not reported | 3.4.10 | Not reported | Not reported | Not reported |
| Cpe | openexr | cpe | Not reported | 3.4.10 | Not reported | NVD-CVE-2026-40250 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libopenexr-3-1-30]Affected
Source package: [openexr]
Details (2)
3.1.5-5· amd64 · bookwormAffected
nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
3.1.5-5· arm64 · bookwormAffected
nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
- [libopenexr-dev]Affected
Source package: [openexr]
Details (2)
3.1.5-5· amd64 · bookwormAffected
nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
3.1.5-5· arm64 · bookwormAffected
nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
- [libopenexr-doc]Affected
Source package: [openexr]
Details (2)
3.1.5-5· all · bookwormAffected
nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
3.1.5-5· all · bookwormAffected
nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
- [openexr]Affected
Details (2)
3.1.5-5· amd64 · bookwormAffected
nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
3.1.5-5· arm64 · bookwormAffected
nvd · openexr · debian · bookworm; nvd · openexr · debian · 12
[Debian 13 (Trixie)]
- [libopenexr-3-1-30]Affected
Source package: [openexr]
Details (2)
3.1.13-2· amd64 · trixieAffected
nvd · openexr · debian · 13
3.1.13-2· arm64 · trixieAffected
nvd · openexr · debian · 13
- [libopenexr-dev]Affected
Source package: [openexr]
Details (2)
3.1.13-2· amd64 · trixieAffected
nvd · openexr · debian · 13
3.1.13-2· arm64 · trixieAffected
nvd · openexr · debian · 13
- [libopenexr-doc]Affected
Source package: [openexr]
Details (2)
3.1.13-2· all · trixieAffected
nvd · openexr · debian · 13
3.1.13-2· all · trixieAffected
nvd · openexr · debian · 13
- [openexr]Affected
Details (2)
3.1.13-2· amd64 · trixieAffected
nvd · openexr · debian · 13
3.1.13-2· arm64 · trixieAffected
nvd · openexr · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_21433-1.json]
- [https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.8]
- [https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.10]
- [https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.10]
- [https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-m5qw-23x2-6phj]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-40250]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-40250]
- [https://security-tracker.debian.org/tracker/CVE-2026-40250]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40250.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]