Confluence Data Center: This High severity DoS (Denial of Service) vulnerability was introduced in versions 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1…
Summary
This High severity DoS (Denial of Service) vulnerability was introduced in versions 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0 and 10.2.0 of Confluence Data Center. This DoS (Denial of Service) vulnerability, with a CVSS Score of 7.1, allows an authenticated 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 9.2: Upgrade to a release greater than or equal to 9.2.17 Confluence Data Center 10.2: Upgrade to a release greater than or equal to 10.2.7 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 Penetration Testing program.
What this means
In plain English
This High severity DoS (Denial of Service) vulnerability was introduced in versions 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0 and 10.2.0 of Confluence Data Center. This DoS (Denial of Service) vulnerability, with a CVSS Score of 7.1, allows an authenticated 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. The official description indicates that an attacker needs authenticated access or valid credentials first. Successful exploitation can interrupt the affected service or exhaust resources, reducing availability until the component recovers.
Recommended action
Primary action: update to a vendor-listed fixed release: 9.2.17, 10.2, 10.2.7. Vendor mitigation: 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 9.2: Upgrade to a release greater than or equal to 9.2.17 Confluence Data Center 10.2: Upgrade to a release greater than or equal to 10.2.7 See the release notes ([
Rewritten locally from the scraped official advisory data above; no generative API is used. The vendor advisory is authoritative.
- Confluence Data Center 10.2.0 to 10.2.6
- Confluence Data Center 10.1.0 to 10.1.2
- Confluence Data Center 10.0.2 to 10.0.3
- Confluence Data Center 9.5.1 to 9.5.4
- Confluence Data Center 9.4.0 to 9.4.1
- Confluence Data Center 9.3.1 to 9.3.2
- Confluence Data Center 9.2.0 to 9.2.15
- Confluence Data Center 9.1.0 to 9.1.1
- Confluence Data Center 9.0.1 to 9.0.3
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
- 9.2.17
- 10.2
- 10.2.7
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
- 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 9.2: Upgrade to a release greater than or equal to 9.2.17 Confluence Data Center 10.2: Upgrade to a release greater than or equal to 10.2.7 See the release notes ([https://confluence.atlassian.com/doc/confluence-release-notes-327.html]).
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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