{"items":[{"id":"NVI-00017573","kind":"vulnerability","title":"SiYuan: Unauthenticated Admin API Access via Blanket chrome-extension:// Origin Allowlist","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-hvr9-72v2-fff3","CVE-2026-54069"],"plain_summary":"GitHub lists this reviewed advisory for github.com/siyuan-note/siyuan/kernel. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-248f9786a8c518822bf0f9e11f4e2ffb"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-248f9786a8c518822bf0f9e11f4e2ffb","url":"https://github.com/advisories/GHSA-hvr9-72v2-fff3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-hvr9-72v2-fff3","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T23:34:12.429Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-248f9786a8c518822bf0f9e11f4e2ffb"],"technology":"github.com/siyuan-note/siyuan/kernel","known_exclusions":[],"conditions_summary":"## Summary\n\nSiYuan Note's kernel HTTP server unconditionally trusts all `chrome-extension://` origins, granting `RoleAdministrator` access to every installed browser extension without any authentication. Combined with the default empty `AccessAuthCode` on desktop installs, any Chrome/Chromium extension -- including a compromised legitimate extension via supply chain attack -- can make fully authenticated admin API calls to the SiYuan kernel at `127.0.0.1:6806`, enabling data exfiltration, stored XSS injection, and configuration tampering.\n\n## Affected Versions\n\nSiYuan <= v3.6.5 (commit `96dfe0bea474`). The chrome-extension allowlist remains unfixed as of the latest commit on the fix branch (`d7b77d945e0d`).\n\n## Vulnerability Details\n\n### Blanket chrome-extension:// Origin Trust (CWE-346)\n\nIn `kernel/model/session.go:277`, the `CheckAuth` middleware exempts all `chrome-extension://` origins from authentication:\n\n```go\nif strings.HasPrefix(origin, \"chrome-extension://\") {\n    // skip auth\n}\n```\n\nAt `session.go:284`, the request is assigned `RoleAdministrator`:\n\n```go\nc.Set(\"role\", model.RoleAdministrator)\n```\n\nThe `AccessAuthCode` field defaults to an empty string for desktop install","public_affected_ranges":["< 0.0.0-20260628153353-2d5d72223df4"]}],"null_published_at":"2026-11-05T19:10:21.419Z","source_updated_at":"2026-07-10T19:27:59.000Z","source_disclosed_at":"2026-07-10T19:26:06.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-04T23:34:12.429Z"}],"next_cursor":null,"snapshot_revision":"42594"}