MEDIUM CISA KEV

CVE-2021-26086

CVSS v3

5.3

MEDIUM

EPSS Score

94.2%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

Description

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.

CISA Known Exploited Vulnerability

Date Added
11/12/2024
Patch Due Date
12/3/2024
Ransomware Use
Unknown

Technical details

Published
8/16/2021

Frequently asked questions

What is CVE-2021-26086?

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.

Is CVE-2021-26086 actively exploited?

Yes. CVE-2021-26086 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 12/3/2024.

What is the CVSS score for CVE-2021-26086?

CVE-2021-26086 has a CVSS v3 base score of 5.3 (MEDIUM severity).

Is CVE-2021-26086 affecting your environment?

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