High [CVE-2025-22166] Confluence Data Center: This High severity DoS (Denial of Service) vulnerability was introduced in version 2.0 of Confluence Data Center.
This high-severity Atlassian advisory covers CVE-2025-22166; related products: Confluence Data Center.
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Summary
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
See the release notes ([ ]).
This vulnerability was reported via our Atlassian (Internal) program.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
- 8.5.25
- 9.2.7
- 10.0.2
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
Mitigation
Upgrade to a fixed release: 8.5.25, 9.2.7, 10.0.2. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
Discussion(0)
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