CVE-2026-27851

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

9.1 (CRITICAL) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — סבירות ניצול

1% (אחוזון 000) נכון ל-29/9/2026

CWE

CWE-235, CWE-89

מוצרים מושפעים

dovecot: dovecot; open-xchange: dovecot

קישורים

• https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/o‮… Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2026-27851
• https://bugzilla.redhat.com/show_bug.cgi?id=2476471
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27851.json