Bug 2438978 (CVE-2025-12474) - CVE-2025-12474 libjxl: libjxl: Uninitialized memory read in decoder due to incorrect optimization in patch handling
Summary: CVE-2025-12474 libjxl: libjxl: Uninitialized memory read in decoder due to in...
Keywords:
Status: NEW
Alias: CVE-2025-12474
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-11 16:02 UTC by OSIDB Bzimport
Modified: 2026-02-11 18:16 UTC (History)
5 users (show)

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Description OSIDB Bzimport 2026-02-11 16:02:15 UTC 
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.
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