CVE-2026-55759
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Rocket.Chat: Apple Sign-In skips JWT claims validation, allowing expired and cross-audience token replay
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Rocket.Chat
- Vendor
- RocketChat
- Product
- Rocket.Chat
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| >= 8.5.0-rc.0, < 8.5.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 8.4.0-rc.0, < 8.4.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 8.3.0-rc.0, < 8.3.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 8.2.0-rc.0, < 8.2.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 8.1.0-rc.0, < 8.1.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 7.11.0-rc.0, < 8.0.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| < 7.10.13 | affected | Unavailable | Unavailable | Unavailable | None listed |