BIT-pgbouncer-2026-6664

vendorUSosv

PgBouncer integer overflow in PgBouncer network packet parsing

view advisory published 2026-05-12Licence: per source

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-6664US	—	0.70% (53rd)	Exploit	2026-05-09
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 PgBoun…

references

External citations — patches, advisories, analysis.

https://nvd.nist.gov/vuln/detail/CVE-2026-6664WEB
https://www.pgbouncer.org/changelog.html#pgbouncer-125xARTICLE

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