• Plesk Uservoice will be deprecated by October. Moving forward, all product feature requests and improvement suggestions will be managed through our new platform Plesk Productboard.
    To continue sharing your ideas and feedback, please visit features.plesk.com

Issue No changelog on Oct-Nov 2025 Imunify AI-bolit vulnerability? Imunify extension patched or not?

presswizards

New Pleskian
Server operating system version
Ubuntu 24
Plesk version and microupdate number
Plesk Obsidian 18.0.73 Update #3 Web Host Edition
I am looking at Plesk changelogs etc to see if the free or paid Imunify or related extensions now included or available in Plesk has been updated yet against:
Critical: Remote Code Execution via Malicious Obfuscated Malware in Imunify360 AV (AI-bolit)
(published November 12 2025)

I do not see any changelog entries or updates from Plesk anywhere showing this issue, how to verify if servers are already patched, etc... very concerning to me that this has not been communicated at all, especially since it is an unauthenticated privilege escalation to root access vulnerability. This should be alarming to all users and should be cause for widespread reassurance from Plesk themselves...
https://docs.plesk.com/release-notes/obsidian/change-log/

"Shared hosting escalation: On shared hosting, successful exploitation can lead to privilege escalation and root access depending on how the scanner is deployed and its privileges. if imunify360AV or its wrapper runs with elevated privileges an attacker could leverage RCE to move from a single compromised site to complete host control."

from Critical: Remote Code Execution via Malicious Obfuscated Malware in Imunify360 AV (AI-bolit)

21 Oct 2025
Imunify releases a patch (DEF-36789) and advises customers to update:
DEF-36789 Fix `deobfuscateDeltaOrd` and `deobfuscateEvalHexFunc` functions

4 Nov 2025
Public Zendesk forum post advising upgrade due to critical security issue:
https://cloudlinux.zendesk.com/hc/e...ity-vulnerability-before-v32-7-4-0-incident99

10 Nov 2025
Security backport in changelogs (DEF-37355):
DEF-37355 Security backport: Fix RCE vulnerability (DEF-36789) for CL6 ai-bolit 1:32.1.10-1

10 Nov 2025
Blog post
 
Hello, @presswizards . Imunify is a third-party extension distributed by CloudLinux, therefore, we do not reflect all changes performed on their end in our changelog. I consulted with the team and the confirmed that all installations should have new version of the ai-bolit package >= 1:32.7.4-1, for Cloudlinux 6 and Centos 6 (ai-bolit 1:32.1.10-2.32.7.4). You can verify that on your server executing the following command:

Code:
rpm -qa ai-bolit
 
Imunify is a third-party extension
I appreciate the reply. It is now included in the Plesk installer as an extension that is packaged with Plesk, and has been referenced in the changelogs many times as ImunifyAV was deprecated, and the new Imunify extension was added. Hence I expected it to be in the changelogs, etc.

I am on Ubuntu, so I ran:

# dpkg -l | grep ai-bolit
ii ai-bolit 1:32.7.4-1 amd64 Tool for webmasters and website administrators.

so I think it looks good.
 
Back
Top