Zimbra Releases Critical Security Update for XSS, XXE, and LDAP Injection Vulnerabilities

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Zimbra Releases Critical Security Update for XSS, XXE, and LDAP Injection Vulnerabilities

First seen 13 Feb 2026, 13:10 UTC • •31.9

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ThreatCluster •March 12, 2026 at 16:10 UTC

Zimbra has released version 10.1.16 on February 4, 2026, to address high-severity vulnerabilities including cross-site scripting (XSS), XML external entity (XXE), and LDAP injection. Administrators are urged to upgrade immediately to protect their email server deployments from potential exploits.

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Updated 182d ago How this analysis works

Timeline

2026-02-04

Zimbra version 10.1.16 released to address vulnerabilities

2026-02-13

Articles published announcing the security update

More articles in this cluster (2)

Threat Graph

4 entities, 3 inferred relationships (STIX 2.1).

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Technique (1)

LDAP Injection

Affected Platform (1)

Zimbra

Vulnerability (2)

XSS
XXE

Relationships

XSS targets Zimbra
XXE targets Zimbra
LDAP Injection targets Zimbra

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