CVE-2021-26086

high-risk
Published 2021-08-16

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.

Do I need to act?

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94.2% chance of exploitation in next 30 days
EPSS score — higher than 6% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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1 public exploit available
50380
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Atlassian

References (5)

Exploit http://packetstormsecurity.com/files/164405/Atlassian-Jira-Server-Data-Center-8....
Issue Tracking https://jira.atlassian.com/browse/JRASERVER-72695
Exploit http://packetstormsecurity.com/files/164405/Atlassian-Jira-Server-Data-Center-8....
Issue Tracking https://jira.atlassian.com/browse/JRASERVER-72695
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
55
/ 100
high-risk
Severity 21/34 · High
Exploitability 27/34 · High
Exposure 7/34 · Low