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pgbouncer vulnerabilities

Vulnerabilities published for pgbouncer in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 6

  1. CVE-2026-6667

    Medium · CVSS 4.3EPSS 0.29%No fix published

    PgBouncer missing authorization check in KILL_CLIENT admin command

    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.

    Published Updated
  2. CVE-2026-6665

    High · CVSS 8.1EPSS 0.37%No fix published

    PgBouncer buffer overflow in SCRAM

    The SCRAM code in PgBouncer before 1.25.2 did not check the return value of strlcat() correctly when building the contents of the SCRAM client-final-message. A malicious backend that sends a SCRAM server-final-message with a long nonce can trigger a stack overflow.

    Published Updated
  3. CVE-2026-6664

    High · CVSS 7.5EPSS 0.7%No fix published

    PgBouncer integer overflow in PgBouncer network packet parsing

    An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet.

    Published Updated

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