ACTIVELY EXPLOITED
CVE-2021-26086: Atlassian Jira Server and Data Center Path Traversal Vulnerability
| Vendor | Atlassian |
|---|---|
| Product | Jira Server and Data Center |
| Actively exploited | Yes |
| Added to CISA KEV | 12 Nov 2024 |
| CISA federal deadline | 3 Dec 2024 |
| Weakness (CWE) | CWE-22 |
Required action (CISA's text)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description (NVD)
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.
SOURCES
Other Atlassian flaws
- CVE-2026-21589: Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability
- CVE-2023-22527: Atlassian Confluence Data Center and Server Template Injection Vulnerability
- CVE-2023-22518: Atlassian Confluence Data Center and Server Improper Authorization Vulnerability
- CVE-2023-22515: Atlassian Confluence Data Center and Server Broken Access Control Vulnerability
- CVE-2022-36804: Atlassian Bitbucket Server and Data Center Command Injection Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.