Atlassian has released new Confluence Server and Data Center versions to address remote code execution vulnerability CVE-2022-26134 affecting these products. An unauthenticated remote attacker could exploit this vulnerability to execute code remotely. Atlassian reports that there is known exploitation of tmhis vulnerability..
CISA strongly urges organizations to review Confluence Security Advisory 2022-06-02 and upgrade Confluence Server and Confluence Data Center.
Note: per BOD 22-01 Catalog of Known Exploited Vulnerabilities, federal agencies are required to immediately block all internet traffic to and from Atlassian’s Confluence Server and Data Center products AND either apply the software update to all affected instances OR remove the affected products by 5 pm ET on Monday, June 6, 2022.