Advisory severityMedium5.9Red Hat Linux

Medium [CVE-2026-6669] Denial of Service via unbounded SCRAM iteration count

This medium-severity Red Hat Linux advisory covers CVE-2026-6669; related products: Red Hat Hardened Images.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-6669 Source published Sep 23, 2026Source updated Sep 23, 2026

VulniPulse record published Sep 24, 2026Record updated Sep 29, 2026

CVE-2026-6669

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Summary

Denial of Service via unbounded SCRAM iteration count. Red Hat rates this moderate (CVSS 5.9).

Weakness: CWE-835. Red Hat lists fixing advisory RHSA-2026:70698 with package pgbouncer-main-1.26.0-0.1.hum1.

Affected product named by the advisory: Red Hat Hardened Images.

Affected versions

1.25.2

Official advisory · high-confidence parse· fetched 9 days ago·verify at source

Fixed versions

pgbouncer-main-1.26.0-0.1.hum1
RHSA-2026:70698

Official advisory · high-confidence parse· fetched 9 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

To mitigate this issue, ensure that PgBouncer is configured to connect only to trusted and secured PostgreSQL backend servers. Restricting PgBouncer's access to untrusted or potentially compromised backends reduces the risk of a denial of service attack via unbounded SCRAM iteration counts.

Official advisory · high-confidence parse· fetched 9 days ago·verify at source

Discussion(0)

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