cvedb.io
CVE-2026-6478
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-05-14T14:16:25.463 · Last modified 2026-07-02T12:17:44.400

Summary

Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. This does not affect scram-sha-256 passwords, the default in all supported releases. However, current databases may have MD5-hashed passwords originating in upgrades from PostgreSQL 13 or earlier. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Affected products

postgresql — postgresql

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.