CVEvulnerability

CVE-2026-107350

8.8 HIGH Published 2026-10-14 Modified 2026-10-16 Official page ↗
Status
Awaiting Analysis
Published
2026-10-14
Last modified
2026-10-16
Assigner
f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
CVSS 3.1 (f86ef6dc-4d3a-42ad-8f28-e6d5547a5007)
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-287

Description

Improper authentication in PgBouncer 1.17.0 through 1.26.0 allows a remote attacker who knows the password of a user listed in auth_file to log in as any other user that authenticates using SCRAM, including PgBouncer admin users and backend superusers. A second StartupMessage sent during SCRAM authentication against a non-existent database is not rejected and switches the user being logged in as, while the SCRAM exchange is still verified against the keys of the first user.

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References