CVE-2026-93635
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Zimbra Collaboration Suite
PublishedOct 14, 2026
First seenOct 14, 2026
Weakness typeCWE-90CWE-90
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Zimbra Zimbra Collaboration Suite | v ≤ 10.1.21 | — |
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