{"items":[{"id":"NVI-00015097","kind":"vulnerability","title":"Glances: REST API CORS Credentials Guard Uses Exact-Match Instead of Membership Test — Bypassed by Any Multi-Origin Allowlist Containing the Wildcard","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-fp27-88fp-2phg","CVE-2026-68517"],"plain_summary":"GitHub lists this reviewed advisory for glances. 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-20dd0e05ba28563e3d19000b24a7771a"],"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":[{"kind":"CVSS","as_of":"2026-08-17T17:04:52.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-20dd0e05ba28563e3d19000b24a7771a"}],"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-20dd0e05ba28563e3d19000b24a7771a","url":"https://github.com/advisories/GHSA-fp27-88fp-2phg","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-fp27-88fp-2phg","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T20:15:44.568Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-20dd0e05ba28563e3d19000b24a7771a"],"technology":"glances","known_exclusions":[],"conditions_summary":"### Summary\nGlances's REST API server includes a documented safety check intended to guarantee that `cors_credentials=True` can never be combined with an unrestricted CORS origin allowlist. The check compares the configured origin list to the wildcard using exact list equality (`cors_origins == [\"*\"]`) instead of a membership test. Any multi-entry origin configuration that merely includes `\"*\"` alongside other origins (e.g. `cors_origins=*,https://trusted.example.com`) bypasses the check entirely, while Starlette's underlying `CORSMiddleware` still treats the presence of `\"*\"` anywhere in the list as \"allow all origins\" and reflects the request's actual `Origin` header together with `Access-Control-Allow-Credentials: true`. This allows any website to read a victim's authenticated Glances monitoring data — including full process lists with command-line arguments — by exploiting the browser's automatic replay of cached HTTP Basic Auth credentials in a cross-origin request.\n\n### Details\n`glances/outputs/glances_restful_api.py:298`:\n```python\nif cors_origins == [\"*\"] and cors_credentials:\n    logger.warning(...)\n    cors_credentials = False\n```\nThe intended guarantee is documented in `","public_affected_ranges":["< 4.5.6"]}],"null_published_at":"2026-11-03T10:03:26.547Z","source_updated_at":"2026-08-17T17:04:52.000Z","source_disclosed_at":"2026-08-17T17:04:51.000Z","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":"2026-11-02T20:15:44.568Z"}],"next_cursor":null,"snapshot_revision":"42594"}