High severity8.1NVD Advisory· Published Nov 22, 2021· Updated Jun 17, 2026
CVE-2021-3935
CVE-2021-3935
Description
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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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
5- www.pgbouncer.org/changelog.htmlnvdRelease NotesVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/02/msg00016.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2025/05/msg00032.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNPCV3KRDI5PLLLKADFVIOHACQJLZMLI/nvd
News mentions
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