Zimbra Security Advisories

wiki.zimbra.com • July 25, 2026

You could manually check this page:

The following Security Vulnerabilities have been fixed and released in recent versions of Zimbra Collaboration software. For the latest release and patches, update Zimbra using your yum update or apt update. Download the latest version of our software:

Note : only supported versions are referenced , however older unsupported versions often have the same vulnerabilities and should be upgraded to supported versions as soon as possible. (going back to ZCS 7.1.3)

80450 80131 80445 80132

Try now Zimbra Collaboration without any cost with the 60-day free Trial. Get it now »

You can contribute in the Community, in the Wiki, in the Code, or developing Zimlets. Find out more. »

Visit the User Help Page » Visit the Official Forums » Zimbra Documentation Page »

Visit our YouTube Channel to keep posted Webinars, technology news, Product overviews and more. Go to the YouTube Channel »

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Zimbra Collaboration Suite Vulnerability Disclosed A security vulnerability has been identified in Zimbra Collaboration Suite, affecting versions prior to 10.0.12, 10.1.4, and 8.8.15 Patch 47. This vulnerability allows remote attackers to exploit cross-site scripting (XSS) and potentially disclose sensitive information from the targeted system. Users of unsupported versions are also at risk, as they may share similar vulnerabilities. The vendor has released security advisories detailing the vulnerabilities and urging users to update to supported versions. It is critical for organizations using Zimbra to apply the latest patches to mitigate the risk. The vulnerability is classified under multiple CVEs, but specific CVE numbers were not provided in the articles. The current status indicates that users are advised to check for updates immediately. 3 sources 61

Extracted Entities

Platforms (1)

Zimbra Collaboration