{"id":"CVE-2026-100625","revision":"57b81f810dd04f20b4ffda38a8be49d4","records":[{"revision":"57b81f810dd04f20b4ffda38a8be49d4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-100625","aliases":[],"title":"Capgo Build Upload Proxy Authorization Bypass via TUS Resource","description":"Capgo (capgo.app) exposes a native build TUS upload proxy (supabase/functions/_backend/public/build/upload.ts) that authorizes a caller against a single build job identified by the supplied builder_job_id and validates only that job's stored upload_path, but then forwards the user-controlled TUS resource suffix taken from /build/upload/:jobId/* to the builder service while injecting Capgo's privileged builder API key. Because the forwarded suffix is never bound to the authorized job's upload_path or upload_session_key, a caller holding a valid 'all' or 'write' Capgo API key with app.build_native permission for one application can use its authorized proxy path for job A to write to the TUS upload resource of another job B, provided that resource suffix is known or exposed, corrupting that build's artifacts. All versions are affected; no patch was available at the time of advisory publication.","state":0,"publishedAt":"2026-09-26T13:23:03.03+00:00","modifiedAt":"2026-09-30T17:20:12.129+00:00","affected":[{"ecosystem":"Vendor product","name":"capgo.app","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Cap-go\",\n                    \"product\": \"capgo.app\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThanOrEqual\": \"*\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L","score":7.1,"severity":"HIGH"}],"references":["https://github.com/Cap-go/capgo.app/security/advisories/GHSA-r45q-x4gr-3mvv","https://www.vulncheck.com/advisories/capgo-build-upload-proxy-authorization-bypass-via-tus-resource"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100625","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100625","identifiers":["CVE-2026-100625"]},"retained":false,"historicalAffected":[]}],"coverage":[]}