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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1652920034 Vendor Advisory
- https://jira.atlassian.com/browse/CONFSERVER-100907 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.3 · atlassianNVD modified 2026-10-08 11:10
Affected (CPE criteria) 2
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
References 2
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1652920034 Vendor Advisory
- https://jira.atlassian.com/browse/CONFSERVER-100907 Vendor Advisory