CVE-2025-12474lowCWE-908

CVE-2025-12474: low-severity vulnerability in Google libjxl

libjxl: Uninitialized memory read in decoder due to incorrect optimization in patch handling

Published

Follow this CVE+ Monitor libjxl+ Monitor jpeg-xl

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

8Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 2.3epss 0.1%
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.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
Google · libjxl
Related CVEs — Google libjxl

In the same product, most dangerous first.

CVE-2026-1837HIGHlibjxl: Out-of-bounds write in grayscale color transformation when using LCMS2EPSS 0.3%