VULNERABILITY INTELLIGENCE

CVE-2021-26086

CVSS score5.3 MEDIUM

EPSS probability100.00%

CISA KEVKnown exploited vulnerability

Published2021-08-16

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Known Exploited Vulnerability

Atlassian Jira Server and Data Center Path Traversal Vulnerability

Vendor / product: Atlassian / Jira Server and Data Center

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.

Weakness classification

nvd@nist.gov: CWE-22
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-22

Primary references

security@atlassian.com — Exploit, Third Party Advisory, VDB Entry
security@atlassian.com — Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource