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CVE-2026-56122— Winstone Servlet Engine 0.9.10 Path Traversal via HTTP Request Paths

Quick assessment

Affected
rickknowles Winstone Servlet Container
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rick Knowles Winstone Servlet Container是Rick Knowles个人开发者开源的一款轻量级、快速且可靠的独立开源 Java Servlet 容器。 Rick Knowles Winstone Servlet Container 0.9.10及之前版本存在路径遍历漏洞，该漏洞源于处理HTTP GET请求时对点斜杠序列清理不足，可能导致未经身份验证的攻击者通过发送带有目录遍历前缀的请求读取任意文件。

CVSS 7.5 · High EPSS 0.55% · P44

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 1

VendorProduct Version RangeStatus
rickknowles Winstone Servlet Container ≤ 0.9.10 affected
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I. Basic Information for CVE-2026-56122

Vulnerability Information
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Vulnerability Title
Winstone Servlet Engine 0.9.10 Path Traversal via HTTP Request Paths
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Rick Knowles Winstone Servlet Container 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rick Knowles Winstone Servlet Container是Rick Knowles个人开发者开源的一款轻量级、快速且可靠的独立开源 Java Servlet 容器。 Rick Knowles Winstone Servlet Container 0.9.10及之前版本存在路径遍历漏洞，该漏洞源于处理HTTP GET请求时对点斜杠序列清理不足，可能导致未经身份验证的攻击者通过发送带有目录遍历前缀的请求读取任意文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
rickknowles Winstone Servlet Container 0 ~ 0.9.10 -

II. Public POCs for CVE-2026-56122

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III. Intelligence Information for CVE-2026-56122

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Vendor Advisories for CVE-2026-56122 (1)

Proof of Concept for CVE-2026-56122 (1)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2026-56122

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