Skip to content
OpenAdvisories
High ELSA-2026-4728 3 CVEs

Important: libpng security update (Oracle Linux 8)

Published Mar 17, 2026 · Updated Mar 17, 2026

Ecosystem: Oracle Linux

Summary

[2:1.6.34-10]
- fix CVE-2026-25646: heap buffer overflow in png_set_quantize (RHEL-148338)
- fix CVE-2026-22695: heap buffer over-read in png_image_finish_read (RHEL-148852)
- fix CVE-2026-22801: heap buffer over-read in png_image_write_*bit (RHEL-146659)

Fixed packages 2

ReleasePackageFixed in
Oracle Linux · 8 libpng 2:1.6.34-10.el8_10
Oracle Linux · 8 libpng-devel 2:1.6.34-10.el8_10

Vulnerabilities 3

  • High 8.3
    CVE-2026-25646

    LIBPNG has a heap buffer overflow in png_set_quantize

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API function. When the function i…

    pnggroup libpng openjpeg2 fltk Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 6.8
    CVE-2026-22801

    LIBPNG has an integer truncation causing heap buffer over-read in png_image_write_*

    LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bi…

    pnggroup libpng fltk libpng1.6 Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 6.1
    CVE-2026-22695

    LIBPNG has a heap buffer over-read in png_image_read_direct_scaled (regression from CVE-2025-65018 fix)

    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 whe…

    pnggroup libpng libpng1.6 libpng1.6 Debian Ubuntu Azure Linux Alpine Wolfi