CVE-2026-55759: fallo de gravedad alta en RocketChat Rocket.Chat
Rocket.Chat: Apple Sign-In skips JWT claims validation, allowing expired and cross-audience token replay
Publicada el · Actualizada el
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.4epss 0.3%
probabilidad de explotación
0.3%top 77% de las CVE
explotación observada
noninguna fuente lo reporta
Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, Rocket.Chat's Apple Sign-In handler verifies JWT signatures but skips claims validation. Any Apple-signed JWT with a non-empty iss is accepted regardless of aud, exp, nbf, or nonce. An attacker who obtains a target user's Apple identity token (from server logs, an intercepted sign-in flow, or another application sharing the same Apple developer team) can replay it to authenticate as that user, with no expiration on the replay window. This vulnerability is fixed in 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Productos afectados
RocketChat · Rocket.ChatCVEs relacionadas — RocketChat Rocket.Chat
En el mismo producto, de las más peligrosas a las menos.
CVE-2021-32832MEDIUMReDOS in Rocket.ChatEPSS 1.6%CVE-2026-28514CRITICALRocket.Chat: Users can login with any password via the EE ddp-streamer-serviceEPSS 0.8%CVE-2026-45677HIGHRocket.Chat: Lack of SAML Signature Check During Logout Could Lead To DoSEPSS 0.7%CVE-2026-30831HIGHRocket.Chat: 2FA bypass and login of deactivated users via EE ddp-streamerEPSS 0.6%CVE-2026-45689CRITICALRocket.Chat: Pre-Auth NoSQL Injection in OAuth2 Token Endpoint leading to Arbitrary User ATOEPSS 0.5%CVE-2026-45688CRITICALRocket.Chat: Pre-Auth NoSQL Injection in CAS Login Handler leading to Arbitrary CAS/SAML User Session HijackEPSS 0.5%