CVE-2021-3935
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.1%
exploitation probability
1.1%top 35% of all CVEs
observed exploitation
nono source reports it
When PgBouncer is configured to use "cert" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of TLS certificate verification and encryption. This flaw affects PgBouncer versions prior to 1.16.1.
Affected products
n/a · pgbouncerReferences
https://bugzilla.redhat.com/show_bug.cgi?id=2021251https://lists.debian.org/debian-lts-announce/2022/02/msg00016.htmlhttps://lists.debian.org/debian-lts-announce/2025/05/msg00032.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNPCV3KRDI5PLLLKADFVIOHACQJLZMLI/http://www.pgbouncer.org/changelog.html#pgbouncer-116x