Vulnerability · Published Feb 11, 2026 · Assigned by Google
CVE-2025-12474libjxl: Uninitialized memory read in decoder due to incorrect optimization in patch handling
Low 2.3
In plain English
A low-severity security flaw in libjxl from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)2.3Low
Exploit odds (30 days)0.1%top 98.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | libjxl | 0.11.2-r0 | ALPINE-CVE-2025-12474 |
| Debian:12 | jpeg-xl | no fix listed | DEBIAN-CVE-2025-12474 |
| Debian:13 | jpeg-xl | 0.11.2-0.1~deb13u1 | DEBIAN-CVE-2025-12474 |
| Debian:14 | jpeg-xl | 0.11.2-0.1 | DEBIAN-CVE-2025-12474 |
| Ubuntu:25.10 | graphicsmagick | no fix listed | UBUNTU-CVE-2025-12474 |
| Ubuntu:26.04:LTS | graphicsmagick | no fix listed | UBUNTU-CVE-2025-12474 |
| Ubuntu:26.10 | graphicsmagick | no fix listed | UBUNTU-CVE-2025-12474 |
Affected products (as reported)
Weakness: CWE-908 · Vector: 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