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TI-2021-16508 Aliases CVE-2021-39118GHSA-w893-8c37-cjx9

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to…

Priority LOW 33Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to discover the usernames and full names of users via an enumeration vulnerability in the /rest/api/1.0/render endpoint. The affected versions are before version 8.19.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01523 74th percentileScored 2026-11-07
Fix Fixed Jira Server (Atlassian): 8.19.0Jira Data Center (Atlassian): 8.19.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AtlassianJira Serverbefore 8.19.08.19.0Patch availableCNA
AtlassianJira Data Centerbefore 8.19.08.19.0Patch availableCNA
  • Jira Server VendorAtlassian Affected before 8.19.0 Fixed in 8.19.0 Patch available CNA
  • Jira Data Center VendorAtlassian Affected before 8.19.0 Fixed in 8.19.0 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:*before 8.19.0VulnerableAtlassian
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*before 8.19.0VulnerableAtlassian
  • cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* Versions before 8.19.0 Vulnerable ·Atlassian
  • cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:* Versions before 8.19.0 Vulnerable ·Atlassian

Remediation

  • Fix · CNA Jira Server (Atlassian) Fixed in 8.19.0
  • Fix · CNA Jira Data Center (Atlassian) Fixed in 8.19.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-39118
  2. 2026-10-03 Alias added: GHSA-w893-8c37-cjx9

References

Advisory 1

  • TI-2020-18587 Incorrect authorization in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
  • TI-2020-11107 Information disclosure in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
  • TI-2021-16503 Insufficient session expiration in Atlassian Jira Server CVSS 3.1HIGH 7.5
  • TI-2017-13320 Code injection in Atlassian Jira Server CVSS 3.1HIGH 8.8
  • TI-2020-17687 Path traversal in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
  • TI-2021-16512 Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote… CVSS 3.1HIGH 7.5
See all 37 →

Sources

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