Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Integer overflow in the packet buffer growth logic in PgBouncer through 1.25.2 allows an unauthenticated remote attacker to cause a denial of service. Sufficiently large input makes the buffer size computation overflow, leaving the growth loop unable to terminate. Because PgBouncer serves all clients from a single process, this saturates a CPU core and stalls every pooled connection until the process is killed. Both unauthenticated and authenticated code paths can reach the overflow.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
PgBouncer v1.26.0 fixes an issue I reported, now tracked as CVE-2026-6668, an integer overflow that can lead to a server DoS. Update your instances, especially if you’re running multi-tenant deployments. CVE: https://www.cve.org/CVERecord?id=CVE-2026-6668 Fix: https://github.com/pgbouncer/pgbouncer/commit/f2ff5538b0abc262e84dab4e946999dfbd3b0e18