PT-2026-43994 · Libjxl · Libjxl

Published 2026-05-27 · Updated 2026-06-08 · CVE-2025-70103

Positive Technologies (AI Summary)

CVSS v3.1

7.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions libjxl version 0.12.0

Description A heap buffer overflow occurs when processing crafted PBM images. The issue is located in the jxl::extras::DecodeImagePNM() function within the lib/extras/dec/pnm.cc file.

Recommendations Update libjxl to the version provided in the libjxl-devel-0.11.2-2.1 package or newer.

Exploit

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2025-70103

ECHO-70E5-AB74-3FEC

OPENSUSE-SU-2026:10910-1

OPENSUSE-SU-2026:10935-1

OPENSUSE-SU-2026:10955-1

USN-8397-1

Affected Products

Libjxl

References · 20

• 🔥 https://github.com/libjxl/libjxl/issues/4337 · Exploit
• 🔥 https://github.com/sigdevel/pocs/blob/main/res/libjxl/2025/2 · Exploit
• https://cve.org/CVERecord?id=CVE-2025-70103 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-70103 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-70103 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-70103 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10935-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-70103 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10955-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8397-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8397-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10910-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-70103 · Vendor Advisory
• https://github.com/libjxl/libjxl/pull/4338 · Note
• https://twitter.com/oss_security/status/2061621945343393981 · Twitter Post