Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability

Atlassian Confluence Server and Data Center contain a remote code execution vulnerability that allows for an unauthenticated attacker to perform remote code execution.

Published 5 Sep 2026Updated 5 Sep 202617 sources
CVSS 9.8 ✓ VERIFIED REFERENCE△ CISA KEV

What happened

Atlassian Confluence Server and Data Center contain a remote code execution vulnerability that allows for an unauthenticated attacker to perform remote code execution.

Affected versions

Confluence Server/Data Center: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

  • Review the original advisory and validate affected versions.
  • Apply vendor-provided updates or mitigations when available.

Public PoC references