CVEvulnerability

CVE-2026-27851

9.1 CRITICAL Published 2026-05-12 Modified 2026-10-26 Official page ↗
Status
Modified
Published
2026-05-12
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-235, CWE-89

Description

When safe filter is used with variable expansion, all following pipelines on the same string are incorrectly interpreted as safe too, enabling unsafe data to be unescaped. This can enable SQL / LDAP injection attacks when used in authentication. Avoid using safe filter until on fixed version. No publicly available exploits are known.

Affected configurations

• dovecot dovecot (< 2.4.4) • open-xchange dovecot (< 3.1.5)

Related

Weakness · CWE (2)

  • CWE-235 Improper Handling of Extra Parameters weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command weakness

References