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TI-2021-08038 Aliases CVE-2021-26086GHSA-vvhj-8w7x-qj58

Path traversal in Atlassian Jira Server

Priority HIGH 81Exploited in the wildCWE-22Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to read particular files via a path traversal vulnerability in the /WEB-INF/web.xml endpoint. The affected versions are before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1.

Why it matters now

Exploitation Active In CISA KEV since 2024-11-12CISA due date 2024-12-03
EPSS 0.99999 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
Active
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 · 2

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

Timeline

  1. 2024-11-12 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2021-26086
  3. 2026-10-03 Alias added: GHSA-vvhj-8w7x-qj58

References

Exploit 1

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-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
  • TI-2022-09597 Server-side request forgery in Atlassian Jira Core Server CVSS 3.1MEDIUM 6.5
See all 79 →

Sources

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