Atlassian Jira Server and Data Center Path Traversal Vulnerability (CVE-2021-26086)
Severity: medium · Patch status: unknown · Since 2024-11-12 · CVE-2021-26086
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. CISA added CVE-2021-26086 to its Known Exploited Vulnerabilities catalog on Nov 12, 2024, which means attackers are exploiting it in the wild.
What to do
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Dec 3, 2024 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
