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CVE-2026-54411 · cross-distro fix matrix

CVE-2026-54411: It was discovered that PAM had a timing discrepancy in the pam_userdb

Affects 3 Linux releases across 22 (distro × package) combinations. First disclosed: 2026-06-14.

CVSS v3:MEDIUM · 5.9(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-54411 has a known fix. Run the listed command on that distro to remediate.

Ubuntu jammy

Source: Ubuntu USN

  • pam→ fixed in1.4.0-11ubuntu2.7USN-8601-1
    sudo apt-get install --only-upgrade -y pam
  • libpam-cracklib→ fixed in1.4.0-11ubuntu2.7USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-cracklib
  • libpam-doc→ fixed in1.4.0-11ubuntu2.7USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-doc
  • libpam-modules→ fixed in1.4.0-11ubuntu2.7USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-modules
  • libpam-modules-bin→ fixed in1.4.0-11ubuntu2.7USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-modules-bin
  • libpam-runtime→ fixed in1.4.0-11ubuntu2.7USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-runtime
  • libpam0g→ fixed in1.4.0-11ubuntu2.7USN-8601-1
    sudo apt-get install --only-upgrade -y libpam0g
  • libpam0g-dev→ fixed in1.4.0-11ubuntu2.7USN-8601-1
    sudo apt-get install --only-upgrade -y libpam0g-dev

Ubuntu noble

Source: Ubuntu USN

  • pam→ fixed in1.5.3-5ubuntu5.6USN-8601-1
    sudo apt-get install --only-upgrade -y pam
  • libpam-doc→ fixed in1.5.3-5ubuntu5.6USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-doc
  • libpam-modules→ fixed in1.5.3-5ubuntu5.6USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-modules
  • libpam-modules-bin→ fixed in1.5.3-5ubuntu5.6USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-modules-bin
  • libpam-runtime→ fixed in1.5.3-5ubuntu5.6USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-runtime
  • libpam0g→ fixed in1.5.3-5ubuntu5.6USN-8601-1
    sudo apt-get install --only-upgrade -y libpam0g
  • libpam0g-dev→ fixed in1.5.3-5ubuntu5.6USN-8601-1
    sudo apt-get install --only-upgrade -y libpam0g-dev

Ubuntu resolute

Source: Ubuntu USN

  • pam→ fixed in1.7.0-5ubuntu3.1USN-8601-1
    sudo apt-get install --only-upgrade -y pam
  • libpam-doc→ fixed in1.7.0-5ubuntu3.1USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-doc
  • libpam-modules→ fixed in1.7.0-5ubuntu3.1USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-modules
  • libpam-modules-bin→ fixed in1.7.0-5ubuntu3.1USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-modules-bin
  • libpam-runtime→ fixed in1.7.0-5ubuntu3.1USN-8601-1
    sudo apt-get install --only-upgrade -y libpam-runtime
  • libpam0g→ fixed in1.7.0-5ubuntu3.1USN-8601-1
    sudo apt-get install --only-upgrade -y libpam0g
  • libpam0g-dev→ fixed in1.7.0-5ubuntu3.1USN-8601-1
    sudo apt-get install --only-upgrade -y libpam0g-dev
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