Cloudflare customers are protected from the Atlassian Confluence CVE-2022-26134
Jun 3, 2022Reid Tatoris, Daniel Stinson-Diess, Sourov Zaman, Vaibhav Singhal

Summary
This post details the emergency release of a WAF rule (IDs 100531 and 408cff2b) to mitigate CVE-2022-26134, a critical RCE vulnerability in Atlassian Confluence. It explains that Cloudflare customers using WAF or Access are already protected. The WAF rule was deployed on June 2, 2022, at 23:38 UTC with a default BLOCK action. It also highlights that Cloudflare Access protects against unauthenticated exploitation attempts by verifying user authentication before requests reach the Confluence server.
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