Skip to content
OpenAdvisories
Medium RHSA-2026:20356 1 CVE

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Published Sep 5, 2026 · Updated Oct 9, 2026

Ecosystem: Red Hat

Fixed packages 4

ReleasePackageFixed in
Red Hat · Hardened Images 1 hummingbird:1 libpng 0:1.6.58-1.hum1
Red Hat · Hardened Images 1 hummingbird:1 libpng-devel 0:1.6.58-1.hum1
Red Hat · Hardened Images 1 hummingbird:1 libpng-static 0:1.6.58-1.hum1
Red Hat · Hardened Images 1 hummingbird:1 libpng-tools 0:1.6.58-1.hum1

Vulnerabilities 1

  • Medium 5.4
    CVE-2026-40930

    LIBPNG: Chunk smuggling in push-mode APNG parser via unconsumed chunk body

    LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk…

    pnggroup libpng libpng-apng openjpeg2 Debian Ubuntu Azure Linux Alpine

References

  • article
    https://images.redhat.com/
  • report
    https://access.redhat.com/security/cve/CVE-2026-40930
  • article
    https://access.redhat.com/security/updates/classification/
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_20356.json
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2484837
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-40930
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-40930
  • article
    http://www.openwall.com/lists/oss-security/2026/05/15/21
  • article
    https://github.com/pnggroup/libpng/commit/faf06924688b62d7c1654b5ceddedbde66ffadb4
  • article
    https://github.com/pnggroup/libpng/security/advisories/GHSA-c4v6-gxrq-6g2x