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CVE-2021-3935 When PgBouncer is configured to use "cert" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| pgbouncer | Versions not published |
Other CVEs of pgbouncer
The 13 CVEs of pgbouncer →
CVE-2026-107350
Improper authentication in PgBouncer 1.17.0 through 1.26.0 allows a remote attacker who knows the password of a user…
8.8
High
CVE-2026-107349
An infinite loop in PgBouncer 1.20.0 through 1.26.0 allows an unauthenticated remote attacker to cause a denial of…
7.5
High
CVE-2026-107348
Integer overflow in the message buffer growth logic (mbuf_make_room) in PgBouncer 1.21.0 through 1.26.0 allows a…
5.9
Medium
CVE-2026-19888
Missing validation of a mandatory attribute in the SCRAM client-final-message parser in PgBouncer through 1.25.2…
7.5
High