CVE catalog
CVE-2026-54920
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.4.0 through 3.4.12, a reachable assertion failure in the H
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.36% · Oct 25, 2026
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.4.0 through 3.4.12, a reachable assertion failure in the HTJ2K decode path allows a crafted HTJ2K-compressed EXR file to cause an unconditional process abort in any application that calls exr_start_read() on untrusted input, resulting in denial of service. The crash is triggered by a QCD marker whose lower five bits are zero, which OpenEXR passes into the vendored OpenJPH library while constructing the codestream and evaluating its quantization delta parameters. OpenJPH uses an assertion rather than a recoverable error to validate those bits, so any invalid value calls abort() directly and cannot be intercepted by surrounding error handling, a problem compounded by OpenEXR wrapping only its internal HT header parser in error handling while leaving the later codestream read and construction calls unprotected. This issue has been resolved in version 3.4.13.
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 |
| Suse | openexr | linux enterprise module for desktop applications 15 sp7 | 2.2.1-150000.3.52.1 | fixed |
| Suse | openexr | linux enterprise server ltss extended security 12 sp5 | 2.1.0-6.48.1 | fixed |
| Suse | openexr | linux enterprise server 16.0 | 3.2.2-160000.9.1 | fixed |
| Suse | openexr | linux enterprise server for sap applications 16.0 | 3.2.2-160000.9.1 | fixed |
| Opensuse | openexr | leap 16.0 | 3.2.2-160000.9.1 | 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 | Not reported |
| Debian | openexr | source | forky | 3.4.14-0.1 | not yet assigned | Not reported | Not reported |
| Debian | openexr | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | openexr | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Suse | openexr | rpm | linux enterprise module for desktop applications 15 sp7 | 2.2.1-150000.3.52.1 | Not reported | SUSE-SU-2026:3169-1 | Not reported |
| Suse | openexr | rpm | linux enterprise server ltss extended security 12 sp5 | 2.1.0-6.48.1 | Not reported | SUSE-SU-2026:3168-1 | Not reported |
| Suse | openexr | rpm | linux enterprise server 16.0 | 3.2.2-160000.9.1 | Not reported | SUSE-SU-2026:22653-1 | Not reported |
| Suse | openexr | rpm | linux enterprise server for sap applications 16.0 | 3.2.2-160000.9.1 | Not reported | SUSE-SU-2026:22653-1 | Not reported |
| Opensuse | openexr | rpm | leap 16.0 | 3.2.2-160000.9.1 | Not reported | OPENSUSE-SU-2026:21336-1 | 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/opensuse-su-2026_11218-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-54920]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-54920]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22653-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3168-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3169-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21336-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-54920]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54920.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]