CVE-2026-75575
Rocket.Chat exposes the sendForgotPasswordEmail Meteor method without a DDP rate limit, so an unauthenticated caller may invoke it as often as it likes. The method is reachable over DDP and over the HTTP route POST /api/v1/method.callAnon/sendForgotPasswordEmail, and it triggers a password reset message for any address that matches an account. With no DDPRateLimiter rule registered for it, a caller can drive an unbounded volume of reset mail at a chosen address from the deployment's own mail sender, and can probe addresses at scale: the method answers true for an address with no account and for a successful send, but false when the address belongs to an account that authenticates through an external provider and Accounts_AllowPasswordChangeForOAuthUsers is off, so repeated calls distinguish that class of account. Later versions register a rule permitting ten calls per minute per client address.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.9
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.23%
- CWE
- CWE-307, CWE-204
- Published
- 2026-08-25
- Last modified
- 2026-08-29
Affected products
- RocketChat Rocket.Chat
- RocketChat Rocket.Chat
- RocketChat Rocket.Chat
- RocketChat Rocket.Chat
- RocketChat Rocket.Chat
- RocketChat Rocket.Chat
- RocketChat Rocket.Chat
- RocketChat Rocket.Chat
Weakness type
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