EUVD-2026-28876
GHSA-pmgp-q838-fh9g
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
3DescriptionNVD
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.
AnalysisAI
Remote denial-of-service in PgBouncer versions before 1.25.2 allows unauthenticated attackers to crash the connection pooler by sending a malformed SCRAM authentication packet that triggers an integer overflow in network packet parsing code. The vulnerability bypasses boundary checks in authentication handling, enabling complete service disruption of database connection pooling. …
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RemediationAI
Within 24 hours: Inventory all PgBouncer deployments and identify versions prior to 1.25.2; assess network exposure (restrict inbound access to PgBouncer ports to trusted application servers only). Within 7 days: Upgrade all PgBouncer instances to version 1.25.2 or later if released, or implement network segmentation to deny unauthenticated remote access. …
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External POC / Exploit Code
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