{"id":"CVE-2026-55202","revision":"b52ace2b06164ce684f2941168995b8f","records":[{"revision":"b52ace2b06164ce684f2941168995b8f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-55202","aliases":[],"title":"Tinyproxy - Stathost Detection Bypass via Host Header Manipulation","description":"Tinyproxy through 1.11.3, fixed in commit 09312a1, fails to properly validate the Host header during stathost detection, allowing unauthenticated attackers to access the stats page by injecting a matching Host header or bypass detection via port manipulation. Remote attackers can trigger unauthorized access to internal proxy statistics or misroute requests as transparent proxy connections to circumvent access controls.","state":0,"publishedAt":"2026-06-17T19:13:45.383+00:00","modifiedAt":"2026-07-14T21:33:56.528+00:00","affected":[{"ecosystem":"Vendor product","name":"tinyproxy","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"tinyproxy\",\n                    \"product\": \"tinyproxy\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:github/tinyproxy/tinyproxy\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"1.11.3\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"09312a185ae25cc486b4ff5987638a7917a48bce\",\n                            \"versionType\": \"git\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/tinyproxy/tinyproxy\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":8.8,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","score":8.2,"severity":"HIGH"}],"references":["https://github.com/tinyproxy/tinyproxy/pull/606","https://github.com/tinyproxy/tinyproxy/commit/09312a185ae25cc486b4ff5987638a7917a48bce","https://www.vulncheck.com/advisories/evil-winrm-path-traversal-in-download-dir-function"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-55202","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-55202","identifiers":["CVE-2026-55202"]},"retained":false,"historicalAffected":[]}],"coverage":[]}