CVE-2025-70103

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.

CVSS 3.1

7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS

0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-25)

CWE

CWE-122

Published

2026-05-27

Modified

2026-10-12

Record from

the NVD, synced 2026-10-19

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
• http://www.openwall.com/lists/oss-security/2026/05/30/7

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