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TI-2021-08033 Aliases CVE-2021-26081GHSA-v3g7-jggh-wjhg

REST API in Atlassian Jira Server and Jira Data Center before version 8.5.14, from…

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

REST API in Atlassian Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1 allows remote attackers to enumerate usernames via a Sensitive Data Exposure vulnerability in the `/rest/api/latest/user/avatar/temporary` endpoint.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01268 69th percentileScored 2026-11-07
Fix Fixed Jira Server (Atlassian): 8.5.14, 8.13.6, 8.16.1Jira Data Center (Atlassian): 8.5.14, 8.13.6, 8.16.1

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 8.5.14; 8.6.0 and later; before 8.13.6; 8.14.0 and later; before 8.16.18.5.14, 8.13.6, 8.16.1Patch availableCNA
AtlassianJira Data Centerbefore 8.5.14; 8.6.0 and later; before 8.13.6; 8.14.0 and later; before 8.16.18.5.14, 8.13.6, 8.16.1Patch availableCNA
  • Jira Server VendorAtlassian Affected before 8.5.14; 8.6.0 and later; before 8.13.6; 8.14.0 and later; before 8.16.1 Fixed in 8.5.14, 8.13.6, 8.16.1 Patch available CNA
  • Jira Data Center VendorAtlassian Affected before 8.5.14; 8.6.0 and later; before 8.13.6; 8.14.0 and later; before 8.16.1 Fixed in 8.5.14, 8.13.6, 8.16.1 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:*before 8.5.14VulnerableAtlassian
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*before 8.5.14VulnerableAtlassian
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*8.6.0 to before 8.13.6; 8.14.0 to before 8.16.1VulnerableAtlassian
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*8.6.0 to before 8.13.6; 8.14.0 to before 8.16.1VulnerableAtlassian
  • cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* Versions before 8.5.14 Vulnerable ·Atlassian
  • cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:* Versions before 8.5.14 Vulnerable ·Atlassian
  • cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* Versions 8.6.0 to before 8.13.6; 8.14.0 to before 8.16.1 Vulnerable ·Atlassian
  • cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:* Versions 8.6.0 to before 8.13.6; 8.14.0 to before 8.16.1 Vulnerable ·Atlassian

Remediation

  • Fix · CNA Jira Server (Atlassian) Fixed in 8.5.14, 8.13.6, 8.16.1
  • Fix · CNA Jira Data Center (Atlassian) Fixed in 8.5.14, 8.13.6, 8.16.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Atlassian Jira Data Center, Jira Server 8.13.6, 8.16.1 and 2 more versions

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2021-08035 Cross-site scripting in Atlassian Jira ServerPriority LOW 25
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-26081
  2. 2026-10-03 Alias added: GHSA-v3g7-jggh-wjhg

References

Patch 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