7.5
High
CVE-2026-6664 An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead…
Description
An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| pgbouncer 1.25 | earliest → < 1.25.2 | 1.25.2 |
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