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CVE-2026-6667

CVE-2026-6667 · PgBouncer missing authorization check in KILL_CLIENT admin command

This page contains facts from public vulnerability sources. Check the original advisory before updating.

PgBouncer before 1.25.2 did not perform an appropriate authorization check for the KILL_CLIENT admin command. All users with access to the administration console (which itself requires authorization) could run this command. It would have been correct to allow only users listed in the admin_users parameter.

CVSS 4.3 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • pgbouncer

    Versions
    • ≥ 0, < 1.25.2: Affected (semver)

    Update to 1.25.2

  • pgbouncer Debian:12

    Versions
    • 1.18.0-1
    • 1.18.0-1+deb12u1
    • 1.19.0-1
    • 1.19.1-1
    • 1.20.0-1
    • 1.20.1-1
    • 1.21.0-1
    • 1.22.0-1
    • 1.22.1-1
    • 1.23.0-1
    • 1.23.1-1
    • 1.24.0-2
    • 1.24.0-3
    • 1.24.1-1
    • 1.25.0-1
    • 1.25.0-2
    • 1.25.1-1
    • 1.25.2-1
    • 1.26.0-1
    • 1.26.0-2
    • 1.26.0-3
    • 1.26.0-4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pgbouncer Debian:13

    Versions
    • 1.24.1-1
    • 1.24.1-1+deb13u1
    Affected ranges
    • ECOSYSTEM: < 1.24.1-1+deb13u2

    Update to 1.24.1-1+deb13u2

  • pgbouncer Debian:14

    Versions
    • 1.24.1-1
    • 1.25.0-1
    • 1.25.0-2
    • 1.25.1-1
    Affected ranges
    • ECOSYSTEM: < 1.25.2-1

    Update to 1.25.2-1

  • pgbouncer Ubuntu:16.04:LTS

    Versions
    • 1.5.5-1
    • 1.6.1-1
    • 1.7-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pgbouncer Ubuntu:18.04:LTS

    Versions
    • 1.7.2-3build1
    • 1.7.2-65-g2b8e6cf-1
    • 1.8.1-1
    • 1.8.1-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pgbouncer Ubuntu:20.04:LTS

    Versions
    • 1.10.0-1
    • 1.10.0-1build1
    • 1.11.0-1
    • 1.12.0-2
    • 1.12.0-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pgbouncer Ubuntu:22.04:LTS

    Versions
    • 1.15.0-1
    • 1.16.1-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pgbouncer Ubuntu:24.04:LTS

    Versions
    • 1.20.0-1
    • 1.21.0-1
    • 1.22.0-1
    • 1.22.0-1build1
    • 1.22.0-1build3
    • 1.22.0-1build4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pgbouncer Ubuntu:25.10

    Versions
    • 1.24.0-3
    • 1.24.1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pgbouncer Ubuntu:26.10

    Versions
    • 1.25.1-1
    • 1.25.2-1
    • 1.25.2-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pgbouncer Ubuntu:26.04:LTS

    Versions
    • 1.24.1-1
    • 1.25.0-2
    • 1.25.1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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