CVE-2026-55088
Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-200
Revelación de información
Fecha de publicación:
19/08/2026
Última modificación:
19/08/2026
Descripción
*** Pendiente de traducción *** 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.
Impacto
Puntuación base 3.x
6.80
Gravedad 3.x
MEDIA