Description
A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized (but allocated) memory.
This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas.
Metrics
CVSS 3.1 4.4/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| libjxl | >= 0.7, <= 0.11.1 |
References
- https://github.com/libjxl/libjxl/pull/4495Issue Tracking, Patch
Timeline
- Published
- Feb 11, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed