JLSEC-2026-7 High 7.1

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG...

JLSEC Published: Mar 24, 2026
Modified: Jul 23, 2026
Severity: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Affected Packages: libpng_jll >= 1.6.51+0, < 1.6.54+0
Upstream: CVE-2026-22695

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the libpng simplified API function png_image_finish_read when processing interlaced 16-bit PNGs with 8-bit output format and non-minimal row stride. This is a regression introduced by the fix for CVE-2025-65018. This vulnerability is fixed in 1.6.54.

References

https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea
https://github.com/pnggroup/libpng/commit/e4f7ad4ea2
https://github.com/pnggroup/libpng/issues/778
https://github.com/pnggroup/libpng/security/advisories/GHSA-mmq5-27w3-rxpp