{"items":[{"id":"NVI-00013888","kind":"vulnerability","title":"rclone: FTP cross-session auth-proxy backend confusion","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c476-6w5q-jw77","CVE-2026-88017"],"plain_summary":"GitHub lists this reviewed advisory for github.com/rclone/rclone. 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-1698bdaae217c8f66e98729766bf4333"],"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":"2026-09-10T22:46:34.000Z","value":"7.3 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1698bdaae217c8f66e98729766bf4333"}],"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-1698bdaae217c8f66e98729766bf4333","url":"https://github.com/advisories/GHSA-c476-6w5q-jw77","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c476-6w5q-jw77","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T22:54:05.264Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1698bdaae217c8f66e98729766bf4333"],"technology":"github.com/rclone/rclone","known_exclusions":[],"conditions_summary":"## Summary\n\nThe FTP auth-proxy driver stores one obscured password per username in a server-wide map. It does not bind the credential or returned VFS to the authenticated FTP session. If two accepted credentials use the same username but resolve to different proxy backends, the later login overwrites the map entry. Subsequent operations on the first, still-authenticated session are re-authorized with the later session's password and execute against the later session's backend.\n\nThis is not exploitable in every auth-proxy deployment. It requires a proxy that accepts distinct credentials for the same username and returns different roots or backend configurations, plus a later login while the attacker's session remains open. The behavior is nevertheless within the supported model: `cmd/serve/proxy` keys VFS entries by username, authentication material, and client IP specifically so a new credential can produce a fresh backend.\n\nConfirmed affected versions are `v1.75.0` and development commit `5629f2668c69149bf3d9d8e2a25bb32a2648606e`. The username-global map was introduced in `v1.64.0`, but versions before credential-aware proxy caching may require cache expiration or different timing","public_affected_ranges":[">= 1.64.0, <= 1.75.0"]}],"null_published_at":"2026-11-02T10:00:37.169Z","source_updated_at":"2026-09-10T22:46:34.000Z","source_disclosed_at":"2026-09-10T22:46:33.000Z","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":"2026-11-01T22:54:05.264Z"}],"next_cursor":null,"snapshot_revision":"42594"}