CVE-2021-3935

Published Nov 22, 2021 CVSS 3.1 · 8.1 High EPSS 1.1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2922-1 pgbouncer security update
Debian DLA Debian DLA DLA-4180-1 pgbouncer security update
EUVD EUVD EUVD-2021-27149 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.
Weaknesses

Sources

Status
PUBLISHED
Assigner
fedora
Published
Updated
Nov 3, 2025, 7:26 PM
Reserved
Nov 8, 2021, 12:00 AM
Status
Modified
Published
Nov 22, 2021, 4:15 PM
Modified
Jun 17, 2026, 4:06 AM