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CVE-2026-21569

HIGH
7.9
CVSS Score
Published: January 28, 2026 at 12:30 AM UTC
Updated: June 17, 2026 at 10:18 AM UTC
1 product affected across 1 vendorCrowd

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Severity
HIGH7.9
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Crowd· Atlassianatlassian-app
95%
7.1.0 ≤ v ≤ 7.1.27.1.0 ≤ v < 7.1.3
Vendor states this is fixed in 7.1.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://confluence.atlassian.com/pages/viewpage.action?pageId=1712324819
Issue TrackingVendor Advisory
Source: cverecord
https://jira.atlassian.com/browse/CWD-6453

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.9HIGHatlassian
Vector?

Quick Info

StatusANALYZED
CWE
CWE-611

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