CVE-2026-56122 (GCVE-0-2026-56122)
Vulnerability from cvelistv5 – Published: 2026-06-25 13:34 – Updated: 2026-06-25 14:07 X_Open Source Unsupported When Assigned
VLAI
EPSS
VEX
Title
Winstone Servlet Engine 0.9.10 Path Traversal via HTTP Request Paths
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 14:07 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://gist.github.com/VAMorales/ce93f10215c43b2… | technical-descriptionexploit |
| https://winstone.sourceforge.net/ | product |
| https://www.vulncheck.com/advisories/winstone-ser… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| rickknowles | Winstone Servlet Container |
Affected:
0 , ≤ 0.9.10
(semver)
|
guessed |
Date Public
2026-06-24 00:00
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