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CVE-2026-42798 · cross-distro fix matrix

CVE-2026-42798: It was discovered that Little CMS incorrectly handled certain malformed ICC

Affects 3 Linux releases across 9 (distro × package) combinations. First disclosed: 2026-04-30.

CVSS v3:MEDIUM · 4(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-42798 has a known fix. Run the listed command on that distro to remediate.

Ubuntu questing

Source: Ubuntu USN

  • lcms2→ fixed in2.16-2ubuntu0.2USN-8250-1
    sudo apt-get install --only-upgrade -y lcms2
  • liblcms2-2→ fixed in2.16-2ubuntu0.2USN-8250-1
    sudo apt-get install --only-upgrade -y liblcms2-2
  • liblcms2-dev→ fixed in2.16-2ubuntu0.2USN-8250-1
    sudo apt-get install --only-upgrade -y liblcms2-dev
  • liblcms2-utils→ fixed in2.16-2ubuntu0.2USN-8250-1
    sudo apt-get install --only-upgrade -y liblcms2-utils

Ubuntu resolute

Source: Ubuntu USN

  • lcms2→ fixed in2.17-1ubuntu0.2USN-8250-1
    sudo apt-get install --only-upgrade -y lcms2
  • liblcms2-2→ fixed in2.17-1ubuntu0.2USN-8250-1
    sudo apt-get install --only-upgrade -y liblcms2-2
  • liblcms2-dev→ fixed in2.17-1ubuntu0.2USN-8250-1
    sudo apt-get install --only-upgrade -y liblcms2-dev
  • liblcms2-utils→ fixed in2.17-1ubuntu0.2USN-8250-1
    sudo apt-get install --only-upgrade -y liblcms2-utils

Debian trixie

Source: Debian Security Tracker

  • lcms2→ fixed in2.16-2+deb13u2urgency: not yet assigned
    sudo apt-get install --only-upgrade -y lcms2
Are YOU affected by CVE-2026-42798?

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