NEW Zimbra Patches: 9.0.0 Patch 19 + 8.8.15 Patch 26

Zimbra Patch Alert

Hello Zimbra Friends, Customers & Partners,

Zimbra 9.0.0 “Kepler” Patch 19 and 8.8.15 “James Prescott Joule” Patch 26 are here.

Security Recommendation

Zimbra strongly recommends that you review whether the Proxy Servlet is configured to allow a particular host (via the zimbraProxyAllowedDomains configuration setting on each class of service). Please make sure:

  • Each entry in zimbraProxyAllowedDomains is a safe and trusted host.
  • There are NO wild card entries like *.webex.com. Instead use specific hosts like example.webex.com.

Zimbra 9.0.0 “Kepler” Patch 19

Patch 19 is here for the Zimbra 9.0.0 “Kepler” GA release, and it includes What’s New, Fixed Issues and Known Issues as listed in the release notes. Please refer to the release notes for Zimbra 9.0.0 Patch 19 installation on Red Hat and Ubuntu platforms.

Zimbra 8.8.15 “James Prescott Joule” Patch 26

Patch 26 is here for the Zimbra 8.8.15 “James Prescott Joule” GA release, and it includes What’s New, Fixed Issues and Known Issues as listed in the release notes. Please refer to the release notes for Zimbra 8.8.15 Patch 26 installation on Red Hat and Ubuntu platforms.

Note: For Zimbra 8.8.8 and above, you don’t need to download any patch builds. The patch packages can be installed using Linux package management commands.

Note: You cannot revert to the previous ZCS release after you upgrade to the patch.

Take care and thanks,
Your Zimbra Team

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