LDAP Injection Vulnerability in Zimbra Collaboration by Zimbra
CVE-2026-33369

4.3MEDIUM

Key Information:

Vendor

Zimbra

Status
Zimbra Collaboration
Vendor
CVE Published:
20 March 2026

What is CVE-2026-33369?

Zimbra Collaboration versions 10.0 and 10.1 are susceptible to an LDAP injection vulnerability within the Mailbox SOAP service, particularly during a FolderAction operation. The flaw arises from inadequate input sanitization of user-supplied data, allowing an authenticated attacker to craft a malicious SOAP request. This manipulation can alter the underlying LDAP query, potentially exposing sensitive directory attributes that should remain confidential.

References

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
https://wiki.zimbra.com/wiki/Security_Center
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosur...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.