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Medium RLSA-2026:18064 1 CVE

Moderate: libpng security update

Published May 19, 2026 · Updated May 19, 2026

Ecosystem: Rocky Linux

Summary

The libpng packages contain a library of functions for creating and manipulating Portable Network Graphics (PNG) image format files.

Security Fix(es):

* libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 10 libpng 2:1.6.40-8.el10_1.4

Vulnerabilities 1

  • High 7.5
    CVE-2026-33416

    LIBPNG has use-after-free via pointer aliasing in `png_set_tRNS` and `png_set_PLTE`

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. In versions 1.2.1 through 1.6.55, `png_set_tRNS` and `png_set_PLTE` each alias a heap-allocated buffer between `png_str…

    pnggroup libpng openjpeg2 fltk Debian Ubuntu Azure Linux Alpine Wolfi

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2451805