CVE-2026-56122
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Summary
Winstone Servlet Engine through 0.9.10 contains a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files by sending HTTP GET requests with dot-dot-slash sequences that are not sanitized when serving static files from the configured webroot. Attackers can traverse outside the webroot directory using traversal-prefixed paths in a single HTTP request to read any file accessible to the servlet engine process, including sensitive system files when the service runs with elevated privileges.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| rickknowles | Winstone Servlet Container | 0 <= 0.9.10 | affected |
Weaknesses
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
References
- https://gist.github.com/VAMorales/ce93f10215c43b2a8344426f4dd59cd3
- https://winstone.sourceforge.net/
- https://www.vulncheck.com/advisories/winstone-servlet-engine-path-traversal-via-http-request-paths
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