TI-2019-14512 Aliases CVE-2019-20104 GHSA-g2rw-3cc4-qq38

The OpenID client application in Atlassian Crowd before version 3.6.2, and from version…

LOW 37CWE-776Published 2020-02-06 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability.

Why it matters now

EPSS 0.02434 84th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Crowd (Atlassian): 3.6.2, 3.7.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Atlassian	Crowd	before 3.6.2; 3.7.0 and later; before 3.7.1	3.6.2, 3.7.1	Patch available	CNA

Crowd VendorAtlassian Affected before 3.6.2; 3.7.0 and later; before 3.7.1 Fixed in 3.6.2, 3.7.1 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:atlassian:crowd::::::::	before 3.2.11; 3.3.0 to before 3.3.8; 3.4.0 to before 3.4.7; 3.5.0 to before 3.5.2; 3.6.0 to before 3.6.2; 3.6.3 to before 3.7.1; 3.7.2 to before 4.0.0	Vulnerable	Atlassian

cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:* Versions before 3.2.11; 3.3.0 to before 3.3.8; 3.4.0 to before 3.4.7; 3.5.0 to before 3.5.2; 3.6.0 to before 3.6.2; 3.6.3 to before 3.7.1; 3.7.2 to before 4.0.0 Vulnerable ·Atlassian

Remediation

Fix · CNA Crowd (Atlassian) Fixed in 3.6.2, 3.7.1

Timeline

2026-10-02 Threatist record created from CVE-2019-20104
2026-10-03 Alias added: GHSA-g2rw-3cc4-qq38

References

Exploit 1

https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/

Advisory 1

https://jira.atlassian.com/browse/CWD-5526

TI-2019-08653 Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly… KEVCVSS 3.1CRITICAL 9.8
TI-2026-67904 Arbitrary file access in Atlassian Data Center products KEVCVSS 4.0CRITICAL 9.3
TI-2012-02540 Atlassian JIRA before 5.0.1; Confluence before 3.5.16, 4.0 before 4.0.7, and 4.1 before… CVSS 3.1CRITICAL 9.1
TI-2022-09598 Improper authentication in Atlassian Bamboo Server CVSS 3.1CRITICAL 9.8
TI-2022-21516 Affected versions of Atlassian Crowd allow an attacker to authenticate as the crowd… CVSS 3.1CRITICAL 9.8
TI-2016-05568 The LDAP directory connector in Atlassian Crowd before 2.8.8 and 2.9.x before 2.9.5… CVSS 3.0CRITICAL 9.8

See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences