PG
Product
Pgbouncer
by Pgbouncer · last CVE May 9, 2026
10
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 2High 6Medium 2Low 0
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Add Pgbouncer to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-6665
9.8
0%
May 9
PgBouncer buffer overflow in SCRAM
Affected: before 1.25.2
CVE-2025-2291
9.8
0%
Apr 16
Password can be used past expiry in PgBouncer due to auth_query not taking into account Postgres its VALID UNTIL value, which allows an attacker to log in with an already expired…
Affected: before 1.24.1
CVE-2025-12819
8.1
0%
Dec 3
Untrusted search path in auth_query connection handler in PgBouncer before 1.25.1 allows an unauthenticated attacker to execute arbitrary SQL during authentication via a malicious…
Affected: before 1.25.1
CVE-2021-3935
8.1
1%
Nov 22
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…
Affected: before 1.16.1
CVE-2015-6817
8.1
2%
May 23
PgBouncer 1.6.x before 1.6.1, when configured with auth_user, allows remote attackers to gain login access as auth_user via an unknown username
Affected: 1.6
CVE-2026-6666
7.5
0%
May 9
PgBouncer crash in kill_pool_logins_server_error
Affected: before 1.25.2
CVE-2026-6664
7.5
1%
May 9
PgBouncer integer overflow in PgBouncer network packet parsing
Affected: before 1.25.2
CVE-2015-4054
7.5
4%
May 23
PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet
Affected: through 1.5.4
CVE-2021-3672
5.6
3%
Nov 23
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might…
Affected: through 1.17.0
CVE-2026-6667
4.3
0%
May 9
PgBouncer missing authorization check in KILL_CLIENT admin command
Affected: before 1.25.2
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