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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is in the KEV database since Nov. 12, 2024.

The EPSS score is 0.94189.

Exploitation active

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Atlassian Subscribe
Jira Data Center Subscribe
Jira Server Subscribe

Configuration 1 [-]

OR cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://packetstormsecurity.com/files/164405/Atlassian-Jira-Server-Data-Center-8.4.0-File-Read.html cve-icon cve-icon
https://jira.atlassian.com/browse/JRASERVER-72695 cve-icon cve-icon
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26086 cve-icon
History

Wed, 22 Oct 2025 09:30:00 +0900

Type Values Removed Values Added
References

Wed, 22 Oct 2025 05:30:00 +0900

Type Values Removed Values Added
References

Wed, 22 Oct 2025 04:30:00 +0900

Type Values Removed Values Added
References

Wed, 13 Nov 2024 23:15:00 +0900

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

 ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 13 Nov 2024 09:15:00 +0900

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2024-11-12'}

Sat, 12 Oct 2024 06:15:00 +0900

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: atlassian

Published:

Updated: 2025-10-21T23:25:37.960Z

Reserved: 2021-01-25T00:00:00.000Z

Link: CVE-2021-26086

cve-icon Vulnrichment

Updated: 2024-08-03T20:19:19.569Z

cve-icon NVD

Status : Analyzed

Published: 2021-08-16T01:15:06.353

Modified: 2025-10-24T13:38:33.973

Link: CVE-2021-26086

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses