CVE-2026-120426
Dashboard / Vulnerabilities / CVE-2026-120426
CVE-2026-120426
Summary: OpenCSG CSGHub through v2.6.0-ce Unauthenticated Private Repository File Read via Resolve Route
Details: 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 parameter into the file path, which the portal forwards with its server API key, to read files in private model, code or space repositories.
References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/120xxx/CVE-2026-120426.json, https://github.com/OpenCSGs/csghub/releases/tag/v2.6.0-ce, https://nvd.nist.gov/vuln/detail/CVE-2026-120426, https://www.vulncheck.com/advisories/opencsg-csghub-through-2.6.0-ce-unauthenticated-private-repository-file-read-via-resolve-route, https://github.com/OpenCSGs/csghub/issues/1586, https://github.com/OpenCSGs/csghub, https://github.com/OpenCSGs/csghub-server/blob/v2.6.0-ce/api/middleware/authenticator.go#L210-L226, https://github.com/OpenCSGs/csghub/blob/v2.6.0-ce/internal/handlers/frontend/resolve.go#L138-L151, https://github.com/OpenCSGs/csghub/blob/v2.6.0-ce/internal/routes/router.go#L302-L303, https://github.com/OpenCSGs/csghub/blob/v2.6.0-ce/pkg/server/backend/csghubserver/download.go#L10-L41, https://hackmd.io/@hieund/csghub-private-repo-file-read-idor
Affected packages
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