Vulnerability Description
This High severity XXE (XML External Entity Injection) vulnerability was introduced in version 7.1.0 of Crowd Data Center and Server. This XXE (XML External Entity Injection) vulnerability, with a CVSS Score of 7.9, allows an authenticated attacker to access local and remote content which has high impact to confidentiality, low impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Crowd Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: * Crowd Data Center and Server 7.1: Upgrade to a release greater than or equal to 7.1.3 See the release notes (https://confluence.atlassian.com/crowd/crowd-release-notes-199094.html). You can download the latest version of Crowd Data Center and Server from the download center (https://www.atlassian.com/software/crowd/download-archive). This vulnerability was reported via our Atlassian (Internal) program.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Atlassian | Crowd | >= 7.1.0, < 7.1.3 |
Related Weaknesses (CWE)
References
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1712324819Vendor Advisory
- https://jira.atlassian.com/browse/CWD-6453Vendor AdvisoryIssue Tracking
FAQ
What is CVE-2026-21569?
CVE-2026-21569 is a vulnerability with a CVSS score of 7.9 (HIGH). This High severity XXE (XML External Entity Injection) vulnerability was introduced in version 7.1.0 of Crowd Data Center and Server. This XXE (XML External Entity Injection) vulnerability, with a...
How severe is CVE-2026-21569?
CVE-2026-21569 has been rated HIGH with a CVSS base score of 7.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-21569?
Check the references section above for vendor advisories and patch information. Affected products include: Atlassian Crowd.