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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 28 Jan 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-611
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 28 Jan 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Atlassian
Atlassian crowd Data Center
Vendors & Products Atlassian
Atlassian crowd Data Center

Wed, 28 Jan 2026 01:00:00 +0000

Type Values Removed Values Added
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.
References
Metrics cvssV3_0

{'score': 7.9, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: atlassian

Published:

Updated: 2026-01-28T14:49:56.282Z

Reserved: 2026-01-01T00:00:40.720Z

Link: CVE-2026-21569

cve-icon Vulnrichment

Updated: 2026-01-28T14:49:49.903Z

cve-icon NVD

Status : Received

Published: 2026-01-28T01:16:14.187

Modified: 2026-01-28T15:16:17.670

Link: CVE-2026-21569

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-28T12:21:45Z

Weaknesses