{"api_version":"1","generated_at":"2026-09-17T14:27:18+00:00","cve":"CVE-2026-34151","urls":{"html":"https://cve.report/CVE-2026-34151","api":"https://cve.report/api/cve/CVE-2026-34151.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-34151","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-34151"},"summary":{"title":"XWiki Platform: Resource path traversal via /skin/ action endpoint in Jetty 12+","description":"XWiki Platform is a generic wiki platform. Prior to 17.10.5 and 18.2.0, the /skin/ action in com.xpn.xwiki.web.SkinAction can resolve double-encoded parent-directory segments outside the intended skin or web-application resource prefix when Jetty 12 or later decodes the request path. The affected lookup is replaced with Environment.getResourceAsStream(String, String), which constrains a resource to its expected prefix. An unauthenticated remote attacker can use the vulnerable behavior to read arbitrary resources permitted to the Jetty process, including WEB-INF/xwiki.cfg and, depending on deployment depth and operating-system permissions, host files. Tomcat and Jetty versions before 12 do not appear affected. This issue is fixed in versions 17.10.5 and 18.2.0.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-09-14 18:17:47","updated_at":"2026-09-14 19:17:19"},"problem_types":["CWE-24","CWE-24 CWE-24: Path Traversal: 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Prior to 17.10.5 and 18.2.0, the /skin/ action in com.xpn.xwiki.web.SkinAction can resolve double-encoded parent-directory segments outside the intended skin or web-application resource prefix when Jetty 12 or later decodes the request path. The affected lookup is replaced with Environment.getResourceAsStream(String, String), which constrains a resource to its expected prefix. An unauthenticated remote attacker can use the vulnerable behavior to read arbitrary resources permitted to the Jetty process, including WEB-INF/xwiki.cfg and, depending on deployment depth and operating-system permissions, host files. Tomcat and Jetty versions before 12 do not appear affected. This issue is fixed in versions 17.10.5 and 18.2.0.","Type":"Description","Title":"XWiki Platform: Resource path traversal via /skin/ action endpoi"}]}}}