CVE-2026-56122
Winstone Servlet Engine 0.9.10 Path Traversal via HTTP Request Paths
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 |
| Vendor | rickknowles |
| Product | winstone servlet container |
| Published | Jun 25, 2026 |
| Last Updated | Jun 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
rickknowles / Winstone Servlet Container
0 ≤ 0.9.10
References
Credits
Victor A. Morales, Senior Pentester Team Leader, GM Sectec, Corp.