HIGH 7.5 NVD

CVE-2026-19888

Missing validation of a mandatory attribute in the SCRAM client-final-message parser in PgBouncer through 1.25.2 allows an unauthenticated remote attacker to cr

Missing validation of a mandatory attribute in the SCRAM client-final-message parser in PgBouncer through 1.25.2 allows an unauthenticated remote attacker to crash the process. A malformed message can make the parser report success while leaving a required value unset, which is then dereferenced as a NULL pointer. The crash occurs before any credential is verified, so no valid account is required. Because PgBouncer serves all clients from a single process, this terminates every pooled connection.

References

https://www.pgbouncer.org/changelog.html

Published: 2026-09-23 · Source: NVD · Feed updated: 2026-09-23

This high severity vulnerability with a CVSS score of 7.5 was published on 2026-09-23 via NVD.

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