CVE-2025-70103

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.

References

• 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