CVE-2015-6817 Auth bypass in n/a
Remote attackers can bypass authentication to gain access as the auth_user when PgBouncer is configured with auth_user.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-6817?
CVE-2015-6817 is a high-severity authentication bypass vulnerability in n/a, published on 23 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2015-6817?
It affects 1 product.
Products include Pgbouncer Pgbouncer.
How do I fix CVE-2015-6817?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2015-6817 being exploited?
There is no known exploitation of CVE-2015-6817 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2026-6665 PgBouncer buffer overflow in SCRAM
- CVE-2026-6664 PgBouncer integer overflow in PgBouncer network packet parsing
- CVE-2025-12819 Untrusted search path in auth_query connection in PgBouncer
- CVE-2015-4054 Null dereference in n/a
- CVE-2026-6666 PgBouncer crash in kill_pool_logins_server_error
Sources
Also known as DEBIAN-CVE-2015-6817, GHSA-hrw5-48mv-4v6h.