CVE-2026-56122

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/VAMorales/ce93f10215c43b2a8344426f4dd59cd3
https://winstone.sourceforge.net/
https://www.vulncheck.com/advisories/winstone-servlet-engine-path-traversal-via-http-request-paths

Configurations

No configuration.

History

25 Jun 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-25 14:16

Updated : 2026-06-25 19:25

NVD link : CVE-2026-56122

Mitre link : CVE-2026-56122

CVE.ORG link : CVE-2026-56122

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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