CVE-2022-26134: Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability

Critical severity, CVSS 9.8. Actively exploited: in CISA KEV since 2022-06-02. EPSS: 100% chance of exploitation in the next 30 days.

In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are from 1.3.0 before 7.4.17, from 7.13.0 before 7.13.7, from 7.14.0 before 7.14.3, from 7.15.0 before 7.15.2, from 7.16.0 before 7.16.4, from 7.17.0 before 7.17.4, and from 7.18.0 before 7.18.1.

Affected products

• Atlassian Confluence Data Center: from 1.3, before 7.4.17 (fixed in 7.4.17); from 7.13.0, before 7.13.7 (fixed in 7.13.7); from 7.14.0, before 7.14.3 (fixed in 7.14.3); from 7.15.0, before 7.15.2 (fixed in 7.15.2); from 7.16.0, before 7.16.4 (fixed in 7.16.4); from 7.17.0, before 7.17.4 (fixed in 7.17.4); …
• Atlassian Confluence Server: from 1.3, before 7.4.17 (fixed in 7.4.17); from 7.13.0, before 7.13.7 (fixed in 7.13.7); from 7.14.0, before 7.14.3 (fixed in 7.14.3); from 7.15.0, before 7.15.2 (fixed in 7.15.2); from 7.16.0, before 7.16.4 (fixed in 7.16.4); from 7.17.0, before 7.17.4 (fixed in 7.17.4); …

Published 2022-06-03. Last modified 2026-06-17.