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CVE-2026-6666

CVE-2026-6666 · PgBouncer crash in kill_pool_logins_server_error

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

A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.

CVSS 5.9 · Medium · EPSS 0.4% · 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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