Vulnerability in Atlassian Jira Data Center
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…
EPSS: 0.942 (99.9th percentile) — read the EPSS interpretation.
Affected products
- Atlassian Jira Data Center — versions unspecified, 8.6.0, 8.14.0
- Atlassian Jira Server — versions unspecified, 8.6.0, 8.14.0
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Public proof-of-concept exploits
References
- jira.atlassian.com/browse/JRASERVER-72695 (x_refsource_MISC)
- packetstormsecurity.com/files/164405/Atlassian-Jira-Server-Data-Center-8.4.0-Fi… (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-26086?
- CVE-2021-26086 is a vulnerability in Atlassian Jira Data Center. Published 2021-08-16.
- Is CVE-2021-26086 known to be exploited?
- Yes. CVE-2021-26086 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-11-12), indicating it is being actively exploited. 49 public proof-of-concept repositories are indexed.