Medium [CVE-2021-26086] Affected versions of Atlassian Jira Server and Data Center allow remote attackers to read particular files
This medium-severity Atlassian advisory covers CVE-2021-26086 affecting Jira.
Android app · Google Play
Monitor future Atlassian CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Summary
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
- Listed:
- Nov 12, 2024 · federal remediation due Dec 3, 2024
- Required action:
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Ransomware use:
- Unknown
KEV is a prioritization signal from CISA — remediation detail still comes from the vendor advisory.
- 8.6.0
- 8.14.0
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 8.13.6
- 8.16.1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation
Upgrade to a fixed release: 8.13.6, 8.16.1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.