cvedb.io
CVE-2026-55666
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-06-24T22:16:49.393 · Last modified 2026-06-24T22:16:49.393

Summary

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, in apps/meteor/app/apple/server/loginHandler.ts, handleIdentityToken parses a JWT issued by Apple during the OAuth flow. The try block checks for an email parameter. If the JWT does not contain an email address, the application falls back to accepting an arbitrary email value supplied directly in the request. Attackers are able to forge Apple JWTs that do not contain an email address and leverage this vulnerability to carry out account takeover attacks. 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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.