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This vulnerability was recently detected via the live feed and has not yet been processed by Precogs AI's context enrichment engine. The data below represents raw telemetric data.
RAW NVD TELEMETRY
CVE-2026-27855
CVSS Base Score
6.8 MEDIUM
Primary Weakness
CWE-294
Published Date
Mar 27, 2026
Data Source
NVD API
Dovecot OTP authentication is vulnerable to replay attack under specific conditions. If auth cache is enabled, and username is altered in passdb, then OTP credentials can be cached so that same OTP reply is valid. An attacker able to observe an OTP exchange is able to log in as the user. If authentication happens over unsecure connection, switch to SCRAM protocol. Alternatively ensure the communcations are secured, and if possible switch to OAUTH2 or SCRAM. No publicly available exploits are known.