CVE-2026-42198: pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS

May 5, 2026

pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication.

References

github.com/advisories/GHSA-98qh-xjc8-98pq
github.com/pgjdbc/pgjdbc/releases/tag/REL42.7.11
github.com/pgjdbc/pgjdbc/security/advisories/GHSA-98qh-xjc8-98pq
nvd.nist.gov/vuln/detail/CVE-2026-42198

Code Behaviors & Features

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