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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-3935US | high8.1 | — | ||
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… | ||||
02
references
External citations — patches, advisories, analysis.
- http://www.pgbouncer.org/changelog.html#pgbouncer-116xADVISORY
- https://bugzilla.redhat.com/show_bug.cgi?id=2021251ADVISORY
- https://lists.debian.org/debian-lts-announce/2022/02/msg00016.htmlADVISORY
- https://lists.debian.org/debian-lts-announce/2025/05/msg00032.htmlWEB
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNPCV3KRDI5PLLLKADFVIOHACQJLZMLI/WEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-3935WEB
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