CVE-2025-12474 – libjxl: Uninitialized memory read in decoder due to incorrect optimization in patch handling

CVE ID : CVE-2025-12474

Published : Feb. 11, 2026, 3:27 p.m. | 57 minutes ago

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.

Severity: 2.3 | LOW

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