Coverage › CVE-2021-26086
CVE-2021-26086 Unmapped
Atlassian Jira Server and Data Center Path Traversal Vulnerability
- Vendor / product
- Atlassian — Jira Server and Data Center
- Description (CISA)
- 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.
- Added to KEV
- 2024-11-12
- Due date
- 2024-12-03
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Known ransomware use
- Unknown
- CWE
- CWE-22
- CISA notes
- https://jira.atlassian.com/browse/JRASERVER-72695
https://nvd.nist.gov/vuln/detail/CVE-2021-26086 - Elsewhere
- cve.org · NVD · CISA KEV · JSON
ATT&CK techniques
No public source states how this vulnerability is exploited in ATT&CK terms.
The only authoritative CVE → ATT&CK mapping in the open — CTID's Mappings Explorer, pinned to a KEV snapshot of 2025-07-28 and ATT&CK 16.1 — does not include CVE-2021-26086. CISA's catalogue carries no technique field. kevmap does not infer techniques from the CWE (CWE-22) — here is why — and does not guess.
This page will change state automatically if a mapping is published. What is shown above is everything CISA publishes about the entry.