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Medium ELSA-2026-99225 1 CVE

Moderate: mingw-libpng security update (Oracle Linux 8)

Published Nov 12, 2026 · Updated Nov 12, 2026

Ecosystem: Oracle Linux

Summary

[1.6.34-3]
- Fix CVE-2026-33416: use-after-free on png_ptr->trans_alpha and
png_ptr->palette
- Resolves: RHEL-161347

Fixed packages 4

ReleasePackageFixed in
Oracle Linux · 8 mingw32-libpng 0:1.6.34-3.el8_10
Oracle Linux · 8 mingw32-libpng-static 0:1.6.34-3.el8_10
Oracle Linux · 8 mingw64-libpng 0:1.6.34-3.el8_10
Oracle Linux · 8 mingw64-libpng-static 0:1.6.34-3.el8_10

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