{"id":"CVE-2026-120426","title":"OpenCSG CSGHub through v2.6.0-ce Unauthenticated Private Repository File Read via Resolve Route","summary":"OpenCSG CSGHub through v2.6.0-ce contains an authorization bypass vulnerability in the unauthenticated file resolve route that allows remote attackers to read private repository files. Attackers can inject a percent-encoded current_user …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-639"],"vendor":"OpenCSG","product":"CSGHub","affected":["CSGHub <= v2.6.0-ce"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-05T21:34:16.823553Z"},"published":"2026-11-02","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:34:30.350Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-120426","references":[{"url":"https://github.com/OpenCSGs/csghub/issues/1586"},{"url":"https://github.com/OpenCSGs/csghub/blob/v2.6.0-ce/internal/routes/router.go#L302-L303"},{"url":"https://github.com/OpenCSGs/csghub/blob/v2.6.0-ce/internal/handlers/frontend/resolve.go#L138-L151"},{"url":"https://github.com/OpenCSGs/csghub/blob/v2.6.0-ce/pkg/server/backend/csghubserver/download.go#L10-L41"},{"url":"https://github.com/OpenCSGs/csghub-server/blob/v2.6.0-ce/api/middleware/authenticator.go#L210-L226"},{"url":"https://github.com/OpenCSGs/csghub/releases/tag/v2.6.0-ce","label":"CSGHub v2.6.0-ce Release Notes"},{"url":"https://hackmd.io/@hieund/csghub-private-repo-file-read-idor"},{"url":"https://www.vulncheck.com/advisories/opencsg-csghub-through-2.6.0-ce-unauthenticated-private-repository-file-read-via-resolve-route","label":"VulnCheck Advisory: OpenCSG CSGHub through v2.6.0-ce Unauthenticated Private Repository File Read via Resolve Route"}],"tags":["cve.org"],"epss":0.00403,"epssPercentile":0.34749,"ingestedAt":"2026-11-05T19:30:42.652Z","slug":"CVE-2026-120426","body":"## Overview\n\nOpenCSG CSGHub through v2.6.0-ce contains an authorization bypass vulnerability in the unauthenticated file resolve route that allows remote attackers to read private repository files. Attackers can inject a percent-encoded current_user parameter into the file path, which the portal forwards with its server API key, to read files in private model, code or space repositories.\n\n## Affected\n\n- `CSGHub <= v2.6.0-ce`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}