{"items":[{"id":"NVI-00015229","kind":"vulnerability","title":"ep_etherpad-lite: Device-to-device author-token transfer endpoint is replayable, never expires, and exposes the cleartext author token","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-vqfp-p66c-xrp9","CVE-2026-55088"],"plain_summary":"GitHub lists this reviewed advisory for ep_etherpad-lite. 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-450fa7a13a67f95cf3f33af49a00e9ca"],"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":"2026-08-13T14:13:55.000Z","value":"6.8 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-450fa7a13a67f95cf3f33af49a00e9ca"}],"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-450fa7a13a67f95cf3f33af49a00e9ca","url":"https://github.com/advisories/GHSA-vqfp-p66c-xrp9","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-vqfp-p66c-xrp9","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T20:16:47.162Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-450fa7a13a67f95cf3f33af49a00e9ca"],"technology":"ep_etherpad-lite","known_exclusions":[],"conditions_summary":"Etherpad's device-to-device author-token transfer endpoint is replayable, never expires, and exposes the cleartext author token in the GET response body\n\n## Description\n\nEtherpad ships an endpoint pair under `/tokenTransfer` (`src/node/hooks/express/tokenTransfer.ts`) that lets a logged-in user move their HttpOnly author token to a different browser (typically by scanning a QR code containing the transfer URL). The flow is:\n\n1. **POST `/tokenTransfer`** — the source device sends a request whose own author cookie is read off the server-side cookie jar. The server mints a random UUID and stores the author token (and arbitrary `prefsHttp` field) under a DB key keyed by that UUID. The UUID is returned.\n2. **GET `/tokenTransfer/{uuid}`** — the destination device GETs the URL containing the UUID. The server reads the stored record and sets the HttpOnly author cookie on the response.\n\nThe original implementation has three serious flaws:\n\n1. **No expiration check.** `createdAt` is written to the record on POST but never inspected on GET. A leaked transfer URL is redeemable indefinitely.\n2. **No single-use enforcement.** The DB record is not deleted after a successful GET, so the same URL c","public_affected_ranges":[">= 2.6.0, <= 3.0.0"]}],"null_published_at":"2026-11-03T10:03:26.563Z","source_updated_at":"2026-08-13T14:13:55.000Z","source_disclosed_at":"2026-08-13T14:12:44.000Z","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":"2026-11-02T20:16:47.162Z"}],"next_cursor":null,"snapshot_revision":"42594"}