{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-125110","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-11-09T17:45:35.935Z","datePublished":"2026-11-09T22:00:40.811Z","dateUpdated":"2026-11-14T02:25:26.839Z"},"containers":{"cna":{"title":"Rack: Rack::Static header_rules bypass via dot-segment normalization mismatch","problemTypes":[{"descriptions":[{"cweId":"CWE-180","lang":"en","description":"CWE-180: Incorrect Behavior Order: Validate Before Canonicalize","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/rack/rack/security/advisories/GHSA-wvg4-6p58-3gh3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/rack/rack/security/advisories/GHSA-wvg4-6p58-3gh3"},{"name":"https://github.com/rack/rack/commit/18a07fe553afb4d8a678d6a948cd6ba1e11e28be","tags":["x_refsource_MISC"],"url":"https://github.com/rack/rack/commit/18a07fe553afb4d8a678d6a948cd6ba1e11e28be"},{"name":"https://github.com/rack/rack/commit/9d7f19484ffd5ed5e032678c26ee6eff96d3a0a3","tags":["x_refsource_MISC"],"url":"https://github.com/rack/rack/commit/9d7f19484ffd5ed5e032678c26ee6eff96d3a0a3"},{"name":"https://github.com/rack/rack/commit/e88097ccb88be44d06d47b42daffe04929516ee4","tags":["x_refsource_MISC"],"url":"https://github.com/rack/rack/commit/e88097ccb88be44d06d47b42daffe04929516ee4"}],"affected":[{"vendor":"rack","product":"rack","versions":[{"version":"< 2.2.25","status":"affected"},{"version":">= 3.0, < 3.1.23","status":"affected"},{"version":">= 3.2, < 3.2.8","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-11-09T22:00:40.811Z"},"descriptions":[{"lang":"en","value":"Rack is a modular Ruby web server interface. Prior to 2.2.25, 3.1.23, and 3.2.8, Rack::Static serves a path after Utils.clean_path_info normalization but evaluates header_rules against a path that is only URL-decoded. An unauthenticated attacker can request a known file through raw or percent-encoded dot segments and receive it without path-specific security headers such as Content-Disposition or Content-Security-Policy. Applications that do not use path-specific header_rules are not affected. This issue is fixed in versions 2.2.25, 3.1.23, and 3.2.8."}],"source":{"advisory":"GHSA-wvg4-6p58-3gh3","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-14T02:25:17.811506Z","id":"CVE-2026-125110","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-11-14T02:25:26.839Z"}}]}}