Improper Validation of Syntactic Correctness of Input The advisory has been revoked - it doesn't affect any version of package dovecot-pgsql  (opens in a new tab)


Threat Intelligence

EPSS
0.45% (37th percentile)

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  • Snyk IDSNYK-RHEL10-DOVECOTPGSQL-19481583
  • published2 Sept 2026
  • disclosed28 Aug 2026

Introduced: 28 Aug 2026

CVE-2026-33605  (opens in a new tab)
CWE-1286  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dovecot-pgsql package and not the dovecot-pgsql package as distributed by RHEL.

An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating. If running in high-security mode (default for community releases), only the attacker's own connection is terminated. If running in high-performance mode (default for Pro releases), all connections handled by the same managesieve-login process are terminated. Repeating the attack can cause denial of service for Sieve script management. Restrict network access to the ManageSieve service to trusted clients. Update to non-vulnerable version. No publicly available exploits are known.