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Public Security Vulnerability
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Resolution: Fixed
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High
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7.19.0, 8.5.0, 8.6.0, 8.5.1, 8.8.0, 8.7.1, 8.9.0, 9.1.0, 9.0.1, 9.2.0, 9.4.0, 9.3.1, 9.5.1, 10.0.1
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None
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8.3
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High
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CVE-2025-22166
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Atlassian (Internal)
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CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
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DoS (Denial of Service)
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Confluence Data Center
This High severity DoS (Denial of Service) vulnerability was introduced in version 2.0 of Confluence Data Center.
This DoS (Denial of Service) vulnerability, with a CVSS Score of 8.3, allows an attacker to cause a resource to be unavailable for its intended users by temporarily or indefinitely disrupting services of a host connected to a network.
Atlassian recommends that Confluence Data Center customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
- Confluence Data Center and Server 8.5: Upgrade to a release greater than or equal to 8.5.25
- Confluence Data Center and Server 9.2: Upgrade to a release greater than or equal to 9.2.7
- Confluence Data Center and Server 10.0: Upgrade to a release greater than or equal to 10.0.2
See the release notes (https://confluence.atlassian.com/doc/confluence-release-notes-327.html). You can download the latest version of Confluence Data Center from the download center (https://www.atlassian.com/software/confluence/download-archives).
This vulnerability was reported via our Atlassian (Internal) program.