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TI-2021-19706 Aliases CVE-2021-43944GHSA-7gx3-2prj-gfr9

Code injection in Atlassian Jira Server

Priority LOW 38CWE-94Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-94.

Summary

This issue exists to document that a security improvement in the way that Jira Server and Data Center use templates has been implemented. Affected versions of Atlassian Jira Server and Data Center allowed remote attackers with system administrator permissions to execute arbitrary code via Template Injection leading to Remote Code Execution (RCE) in the Email Templates feature. The affected versions are before version 8.13.15, and from version 8.14.0 before 8.20.3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02311 83rd percentileScored 2026-11-07
Fix Fixed Jira Server (Atlassian): 8.13.15, 8.20.3Jira Data Center (Atlassian): 8.13.15, 8.20.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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 8.13.15; 8.14.0 and later; before 8.20.38.13.15, 8.20.3Patch availableCNA
AtlassianJira Data Centerbefore 8.13.15; 8.14.0 and later; before 8.20.38.13.15, 8.20.3Patch availableCNA
  • Jira Server VendorAtlassian Affected before 8.13.15; 8.14.0 and later; before 8.20.3 Fixed in 8.13.15, 8.20.3 Patch available CNA
  • Jira Data Center VendorAtlassian Affected before 8.13.15; 8.14.0 and later; before 8.20.3 Fixed in 8.13.15, 8.20.3 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*before 8.13.15; 8.14.0 to before 8.20.3VulnerableAtlassian
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*before 8.13.15; 8.14.0 to before 8.20.3VulnerableAtlassian
  • cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* Versions before 8.13.15; 8.14.0 to before 8.20.3 Vulnerable ·Atlassian
  • cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:* Versions before 8.13.15; 8.14.0 to before 8.20.3 Vulnerable ·Atlassian

Remediation

  • Fix · CNA Jira Server (Atlassian) Fixed in 8.13.15, 8.20.3
  • Fix · CNA Jira Data Center (Atlassian) Fixed in 8.13.15, 8.20.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43944
  2. 2026-10-03 Alias added: GHSA-7gx3-2prj-gfr9

References

Advisory 1

  • TI-2026-67904 Arbitrary file access in Atlassian Data Center products KEVCVSS 4.0CRITICAL 9.3
  • TI-2022-00460 Improper authentication in Atlassian Jira Core Server CVSS 3.1CRITICAL 9.8
  • TI-2024-14399 Code injection in Atlassian Confluence Data Center CVSS 3.1HIGH 8.8
  • TI-2021-08038 Path traversal in Atlassian Jira Server KEVCVSS 3.1MEDIUM 5.3
  • TI-2020-18559 Missing authorization in Atlassian Jira Data Center CVSS 3.1CRITICAL 9.8
  • TI-2020-18587 Incorrect authorization in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
See all 79 →

Sources

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