Atlassian Confluence vulnerabilities and fixes

CVEs that mention Atlassian Confluence, ranked by priority. 2 tracked.

Atlassian Confluence has 2 tracked vulnerabilities, 0 critical and 1 exploited in the wild (CISA KEV). A fixed release or vendor patch exists for 2. Most recent: 2026-10-05. Highest priority: CVE-2026-21589 (score 88/100).

• CVE-2026-21589 HIGH 7.5 EXPLOITED UPGRADE UPGRADE Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability
• CVE-2026-73498 HIGH 7.7 MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira)

FAQ

How do I fix Atlassian Confluence vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is Atlassian Confluence being exploited right now?

Yes: 1 Atlassian Confluence CVE is on the CISA Known Exploited Vulnerabilities list, so patch it first.

Which Atlassian Confluence CVE should I patch first?

CVE-2026-21589 currently ranks highest (88/100): Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability.

← Back to latest CVEs