{"items":[{"id":"NVI-00015180","kind":"vulnerability","title":" rclone: Path traversal in serve s3 allows reading and overwriting root-level files","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8v25-v8p6-qf7v"],"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-37f0c5f0be2b9db2c74a592d5768427f"],"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":"2026-08-05T20:27:43.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-37f0c5f0be2b9db2c74a592d5768427f"}],"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-37f0c5f0be2b9db2c74a592d5768427f","url":"https://github.com/advisories/GHSA-8v25-v8p6-qf7v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8v25-v8p6-qf7v","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:09.980Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-37f0c5f0be2b9db2c74a592d5768427f"],"technology":"github.com/rclone/rclone","known_exclusions":[],"conditions_summary":"### Summary\n\nrclone serve s3 allows a client to read and write files at the root of the remote which would normally be inaccessible by using dot-dot path segments in the object key. It does not allow reading files outside of the root. A request such as GET /bucket/../root-secret.txt is handled as an object request for bucket \"bucket\", but rclone normalizes the backend path and reads root-secret.txt from the serve root. The same issue also allows overwriting root-level files with PUT.\n\n### Details\n\nThe affected component is rclone serve s3.\n\nRelevant source files:\n\ncmd/serve/s3/backend.go\ncmd/serve/s3/multipart.go\ncmd/serve/s3/list.go\n\nIn cmd/serve/s3/backend.go, the S3 backend builds backend paths by joining the bucket name and object key with path.Join:\n\nfp := path.Join(bucketName, objectName)\n\nThis pattern is used in object operations such as HeadObject, GetObject, PutObject, DeleteObject, and CopyObject.\n\nS3 object keys are opaque names and can legally contain dot-dot segments. However, path.Join treats the object key as a filesystem-style path and normalizes ../ segments. As a result, an object key such as ../root-secret.txt is resolved outside the selected bucket directory.\n\nF","public_affected_ranges":["<= 1.74.3"]}],"null_published_at":"2026-11-03T10:03:26.557Z","source_updated_at":"2026-08-05T20:27:43.000Z","source_disclosed_at":"2026-08-05T20:27:42.000Z","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"}