Denial of Service Vulnerability in Confluence Data Center by Atlassian

CVE-2025-22166

What is CVE-2025-22166?

A Denial of Service (DoS) vulnerability affects Confluence Data Center, allowing attackers to render network resources unavailable to users. This vulnerability, affecting versions starting from 2.0, can be exploited to disrupt services temporarily or indefinitely, impacting users' access to vital functionality. Atlassian has released guidance urging users to upgrade their platforms to the specified versions that address this vulnerability, with details available in the release notes and download center.

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