Description
OpenJPEG 2.4.0 through 2.5.4, and git master through commit 8314119b, contains an out-of-bounds read and write in opj_dwt_encode_and_deinterleave_v() in src/lib/openjp2/dwt.c. This allows an attacker to cause a denial of service.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openjpeg2 | No fix yet | — |
| Debian 13 | openjpeg2 | No fix yet | — |
| Debian 12 | openjpeg2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | blender +3 | No fix yet | — |
| Ubuntu 26.04 LTS | blender +2 | No fix yet | — |
| Ubuntu 24.04 LTS | blender +1 | No fix yet | — |
| Ubuntu 22.04 LTS | blender +2 | No fix yet | — |
| Ubuntu 20.04 LTS | blender +1 | No fix yet | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | blender +1 | No fix yet | — |
| Ubuntu 16.04 LTS | blender +2 | No fix yet | — |
| Ubuntu 14.04 LTS | openjpeg | No fix yet | — |
| Ubuntu Pro 26.04 LTS | qtwebengine-opensource-src | No fix yet | — |
| Ubuntu Pro 24.04 LTS | texmaker +1 | No fix yet | — |
| Ubuntu Pro 22.04 LTS | texmaker +1 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | texmaker +2 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | texmaker +3 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | openjpeg +2 | No fix yet | — |
Advisories 1
- WID-SEC-2026-4168 OpenJPEG: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Nov 9, 2026