Threats Tagged 'ghsa-hp2m-55fj-8mw5'
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Threats Tagged 'ghsa-hp2m-55fj-8mw5'
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0 A vulnerability in PostgreSQL's SCRAM authentication mechanism allows an unauthenticated attacker to determine if a user exists by observing differences in the SCRAM iteration count in authentication responses. This issue affects PostgreSQL major versions 16 through 18, specifically versions before 16.15, 17.11, and 18.5. Versions prior to 16 are not affected. The vulnerability arises because the authentication challenge for nonexistent users always reports the default iteration count, while users with non-default scram_iterations reveal a different count, enabling a user existence oracle. Join the discussion | GCVE Database | 08/19/2026, 08:52:38 UTC Added: 08/13/2026, 17:48:23 UTC |
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