LDAP filter injection in Zimbra Collaboration Suite 10.1.0 through 10.1.21 allows unauthenticated attackers to alter external LDAP search filters. On domains using search-filter authentication and lazy provisioning, this creates a password oracle for external directory users. Authenticated S/MIME lookups can also return certificates and identity data for unintended directory entries.
History

Sun, 18 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Zimbra
Zimbra zimbra Collaboration Suite
Vendors & Products Zimbra
Zimbra zimbra Collaboration Suite

Sat, 17 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Description LDAP filter injection in Zimbra Collaboration Suite 10.1.0 through 10.1.21 allows unauthenticated attackers to alter external LDAP search filters. On domains using search-filter authentication and lazy provisioning, this creates a password oracle for external directory users. Authenticated S/MIME lookups can also return certificates and identity data for unintended directory entries.
Title Zimbra Collaboration Suite LDAP Filter Injection via Unescaped computeDn() Template Substitution
Weaknesses CWE-90
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: rapid7

Published: 2026-10-14T16:24:33.121Z

Updated: 2026-10-16T15:31:51.597Z

Reserved: 2026-09-18T12:22:34.912Z

Link: CVE-2026-93635

cve-icon Vulnrichment

Updated: 2026-10-16T15:29:27.183Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-14T17:20:21.297

Modified: 2026-10-16T19:55:59.740

Link: CVE-2026-93635

cve-icon Redhat

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