CVE-2021-26086
CISA KEVPublished November 12, 2024 · Updated April 3, 2026
high
Official Description+
Atlassian Jira Server and Data Center contain a path traversal vulnerability that allows a remote attacker to read particular files in the /WEB-INF/web.xml endpoint.
Affected Products
| Vendor | Product |
|---|---|
| Atlassian | Jira Server and Data Center |
Patch Status
Patch by 2024-12-03
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2021-26086.