# CVE-2026-75575

## Summary

- **CVE ID:** CVE-2026-75575
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (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)
- **CWE:** CWE-307, CWE-204
- **Published:** Aug 25, 2026
- **Last Modified:** Aug 29, 2026

## Description

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.

## Affected Products

- RocketChat — Rocket.Chat (0)
- RocketChat — Rocket.Chat (8.0.0)
- RocketChat — Rocket.Chat (8.2.0)
- RocketChat — Rocket.Chat (8.3.0)
- RocketChat — Rocket.Chat (8.4.0)
- RocketChat — Rocket.Chat (8.5.0)
- RocketChat — Rocket.Chat (8.6.0)
- RocketChat — Rocket.Chat (8.7.0)
- RocketChat — Rocket.Chat (8.8.0-rc.0)

## References

- [CNA](https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-7c6v-m68v-v73r)
- [CNA](https://github.com/RocketChat/Rocket.Chat)
- [CNA](https://github.com/RocketChat/Rocket.Chat/commit/3a61c3afe)
- [CNA](https://www.vulncheck.com/advisories/rocket-chat-missing-ddp-rate-limit-on-the-sendforgotpasswordemail-meteor-method)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.23%
- **EPSS Percentile:** 14.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._