CVE-2026-55088
CVE-2026-55088 · Etherpad: Device-to-device author-token transfer endpoint is replayable, never expires, and exposes the cleartext author token
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
Etherpad is a real-time collaborative editor. From 2.6.0 until 3.1.0, Etherpad's src/node/hooks/express/tokenTransfer.ts uses POST /tokenTransfer to store an author token for transfer between browsers and exposes it through GET /tokenTransfer/{uuid}. Although the record includes createdAt, the transfer has no expiration check, is not removed after successful redemption, and is returned by res.send(tokenData), including the raw author token. An unauthenticated attacker who obtains a transfer UUID can repeatedly redeem it, receive fresh author cookies, read the cleartext token, and impersonate the originating author for pad read and write operations. This issue is fixed in version 3.1.0.
CVSS 6.8 · Media · EPSS 0,4% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
etherpad
- Versiones
- >= 2.6.0, < 3.1.0: Afectada
Sin corrección publicada
ep_etherpad-lite npm
- Intervalos de versiones afectados
- SEMVER: ≥ 2.6.0, < 3.1.0
Actualiza a 3.1.0