{"id":"EUVD-2026-27067","revision":"f7b1456bde8840149f0a8b5e9488eaed","records":[{"revision":"f7b1456bde8840149f0a8b5e9488eaed","observedAt":"2026-11-03T08:05:28.686+00:00","statement":{"source":"euvd","id":"EUVD-2026-27067","aliases":["CVE-2026-42091"],"title":"goshs is a SimpleHTTPServer written in Go. Prior to version 2.0.2, the PUT upload handler (httpserver/updown.go) lacks the CSRF token validation that was added to the POST upload handler during the CVE-2026-40883 fix. Combined with the unco…","description":"goshs is a SimpleHTTPServer written in Go. Prior to version 2.0.2, the PUT upload handler (httpserver/updown.go) lacks the CSRF token validation that was added to the POST upload handler during the CVE-2026-40883 fix. Combined with the unconditional Access-Control-Allow-Origin: * on the OPTIONS preflight handler (httpserver/server.go), any website can write arbitrary files to a goshs instance through the victim's browser — bypassing network isolation (e.g. localhost, internal network). This issue has been patched in version 2.0.2.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","score":6.5,"severity":null}],"references":["https://github.com/patrickhener/goshs/security/advisories/GHSA-rhf7-wvw3-vjvm","https://github.com/patrickhener/goshs/commit/0e715b94e10c3d1aa552276000f15f104dee2f32","https://github.com/patrickhener/goshs/releases/tag/v2.0.2"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-27067","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 4, 2026, 5:24:47 PM","dateUpdated":"May 5, 2026, 2:14:46 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-27067","identifiers":["EUVD-2026-27067","CVE-2026-42091"]},"retained":false,"historicalAffected":[]}],"coverage":[]}