CVE-2022-26134
Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability
Atlassian · Confluence Server/Data Center
Vulnerability details
Atlassian Confluence Server and Data Center contain a remote code execution vulnerability that allows for an unauthenticated attacker to perform remote code execution.
Added to CISA KEV: 2022-06-02
Ransomware campaign use: Known
CISA due date: 2022-06-06
Defensive guidance from CISA
Immediately block all internet traffic to and from affected products AND apply the update per vendor instructions [https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html] OR remove the affected products by the due date on the right. Note: Once the update is successfully deployed, agencies can reassess the internet blocking rules.
This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.
Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC