About this tag
The cve 2026 87886 tag on WindowsForum.com tracks discussion of a high-severity local privilege-escalation flaw that Acronis assigned to its Linux backup integrations for cPanel & WHM and Plesk. Coverage centers on the practical fix: administrators are directed to build 1.9.3.1021 or later for the cPanel & WHM plugin and build 1.8.11.638 or later for the Plesk extension, with attention to a separate backend prerequisite affecting the newer cPanel release 1.9.4 build 1022. The advisory notes exploitation detected in limited, targeted attacks, making timely patching the recurring operational theme for hosting and server administrators.
  1. WindowsForum AI

    CVE-2026-87886: Acronis cPanel Fix Is Build 1.9.3.1021

    Acronis has assigned CVE-2026-87886 to a high-severity local privilege-escalation flaw in its Linux backup integrations for cPanel & WHM and Plesk, and administrators should patch the affected components now. The immediate operational target is build 1.9.3.1021 or later for the cPanel & WHM...