CVE-2025-70103
Severity CVSS v4.0:
Pending analysis
Type:
CWE-122
Heap-based Buffer Overflow
Publication date:
27/05/2026
Last modified:
30/05/2026
Description
Heap buffer overflow vulnerability in libjxl 0.12.0 via crafted PBM images to the jxl::extras::DecodeImagePNM function in file lib/extras/dec/pnm.cc.
Impact
Base Score 3.x
7.30
Severity 3.x
HIGH
References to Advisories, Solutions, and Tools
- https://github.com/libjxl/libjxl/issues/4337
- https://github.com/libjxl/libjxl/pull/4338
- https://github.com/sigdevel/pocs/blob/main/res/libjxl/2025/2
- https://infosec.exchange/@sigdevel/116642233929409910
- http://www.openwall.com/lists/oss-security/2026/05/30/7
- https://github.com/libjxl/libjxl/issues/4337



