{"items":[{"id":"NVI-00015142","kind":"vulnerability","title":"rclone: WebDAV Credentials Survive a Same-Host HTTPS-to-HTTP Redirect","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-h4mf-4v27-hggj"],"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-2c8dd35ca14a9b46f791e8719f1f9900"],"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":"2026-08-05T20:36:10.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2c8dd35ca14a9b46f791e8719f1f9900"}],"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-2c8dd35ca14a9b46f791e8719f1f9900","url":"https://github.com/advisories/GHSA-h4mf-4v27-hggj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-h4mf-4v27-hggj","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:09.980Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2c8dd35ca14a9b46f791e8719f1f9900"],"technology":"github.com/rclone/rclone","known_exclusions":[],"conditions_summary":"## 1. Summary\n\nWebDAV's default redirect handling can replay Basic authorization and configured Cookie headers over plaintext HTTP after a same-host HTTPS-to-HTTP redirect. This was reproduced through the real backend. Unlike the low-impact STS token in rclone's published S3 redirect advisory, Basic passwords and session cookies are complete reusable credentials, supporting a High rating when they grant normal WebDAV read/write access.\n\nThe credible threat requires a legitimate endpoint, gateway, or accelerator to emit an unsafe redirect and an adjacent/on-path actor to observe the plaintext hop. A report should not rely on a malicious original WebDAV endpoint because that endpoint already receives the credentials.\n\n## 2. Affected Assets & Attack Surface\n\n- Backend configuration/authentication: `backend/webdav/webdav.go:127-139`, `170-206`, `440-530`\n- Shared redirect callback: `lib/rest/rest.go:218-231`\n- HTTP client: `fs/fshttp/http.go:311-329`\n- Credentials: Basic passwords, bearer authorization, SharePoint/session cookies, and configured secret headers\n- Confirmed affected version: `<= v1.74.0-240`\n\n## 3. Technical Root Cause Analysis\n\n`PreserveMethodRedirectFn` limits redirect","public_affected_ranges":["<= 1.74.0"]}],"null_published_at":"2026-11-03T10:03:26.553Z","source_updated_at":"2026-08-05T20:36:10.000Z","source_disclosed_at":"2026-08-05T20:36:10.000Z","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":"2026-11-03T09:58:09.980Z"}],"next_cursor":null,"snapshot_revision":"42594"}