Unrated severityNVD Advisory· Published Jun 25, 2026· Updated Jun 25, 2026
Winstone Servlet Engine 0.9.10 Path Traversal via HTTP Request Paths
CVE-2026-56122
Description
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 products
1Patches
Vulnerability mechanics
References
3- gist.github.com/VAMorales/ce93f10215c43b2a8344426f4dd59cd3mitretechnical-descriptionexploit
- www.vulncheck.com/advisories/winstone-servlet-engine-path-traversal-via-http-request-pathsmitrethird-party-advisory
- winstone.sourceforge.netmitreproduct
News mentions
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