Zimbra Releases/10.1.12
Zimbra Daffodil (v10.1.12) Patch Release
Release Date: Oct 16, 2025
Check out the Things to know before you upgrade sections for this version of Zimbra.
Things to know before you upgrade
Changes to Licensing System
To upgrade to version 10.1.12 from 10.1.3 or before, it is important to ensure that you are using the latest version of the zimbra-lds-patch package. After upgrading to 10.1.12, you must reactivate the license to maintain synchronization. Please refer to patch installation for LDS patch update steps.
To reactivate the license, execute the following command as zimbra user:
zmlicense -a <license_key>
Security Fixes
| Summary | CVE-ID | CVSS Score |
|---|---|---|
| Addressed a Server-Side Request Forgery (SSRF) vulnerability in the chat proxy configuration. |
Packages
The package lineup for this release is:
zimbra-proxy-patch -> 10.1.12.1760086549-1
Patch Installation
Please refer to below link to install 10.1.12 (Oct 16 2025):
- If you are upgrading from any older version other than ZCS 10.1.11 (like 10.1.5, 10.1.6, etc.), please follow the steps mentioned here for cumulative patch upgrade - Patch Installation
- If you are upgrading from 10.1.11, only applicable packages are proxy nodes packages.
- Please note that after this upgrade, in a multi server environment, proxy node server will display 10.1.12 version tag whereas other nodes will continue to display 10.1.11 version tag.
Quick note: Open Source repo
The steps to download, build, and see our code via Github can be found here: https://github.com/Zimbra/zm-build
