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TI-2026-52895 Aliases CVE-2026-75575GHSA-jfh6-w7r2-rj74

Rocket.Chat Missing DDP Rate Limit on the sendForgotPasswordEmail Meteor Method

Priority LOW 37CWE-204Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure, Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-204 and CWE-307.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00397 34th percentileScored 2026-11-07
Fix Fixed Rocket.Chat (RocketChat): 7.10.15, 8.1.8, 8.2.8 +6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
RocketChatRocket.Chatbefore 7.10.15; 8.0.0 to before 8.1.8; 8.2.0 to before 8.2.8; 8.3.0 to before 8.3.8; 8.4.0 to before 8.4.6; 8.5.0 to before 8.5.3; 8.6.0 to before 8.6.2; 8.7.0 to before 8.7.2; 8.8.0-rc.0 to before 8.8.07.10.15, 8.1.8, 8.2.8, 8.3.8, 8.4.6, 8.5.3, 8.6.2, 8.7.2, 8.8.0Patch availableCNA
  • Rocket.Chat VendorRocketChat Affected before 7.10.15; 8.0.0 to before 8.1.8; 8.2.0 to before 8.2.8; 8.3.0 to before 8.3.8; 8.4.0 to before 8.4.6; 8.5.0 to before 8.5.3; 8.6.0 to before 8.6.2; 8.7.0 to before 8.7.2; 8.8.0-rc.0 to before 8.8.0 Fixed in 7.10.15, 8.1.8, 8.2.8, 8.3.8, 8.4.6, 8.5.3, 8.6.2, 8.7.2, 8.8.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*——Rocket.Chat
  • cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* Versions — — ·Rocket.Chat

Remediation

  • Fix · CNA Rocket.Chat (RocketChat) Fixed in 7.10.15, 8.1.8, 8.2.8, 8.3.8, 8.4.6, 8.5.3, 8.6.2, 8.7.2, 8.8.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-75575
  2. 2026-10-03 Alias added: GHSA-jfh6-w7r2-rj74

References

Patch 1

Advisory 1

Other 1

  • TI-2026-33430 Rocket.Chat: Pre-Auth NoSQL Injection in CAS Login Handler leading to Arbitrary CAS/SAML User Session Hijack CVSS 3.1CRITICAL 9.1
  • TI-2026-33431 Rocket.Chat: Pre-Auth NoSQL Injection in OAuth2 Token Endpoint leading to Arbitrary User ATO CVSS 3.1CRITICAL 9.1
  • TI-2026-18910 Rocket.Chat Unauthorized Access to OAuth App Details CVSS 3.1HIGH 7.7
  • TI-2026-35234 Rocket.Chat: Missing URL protocol sanitization in ImageElement allows javascript: URLs in markdown images CVSS 3.1MEDIUM 4.4
  • TI-2026-22776 Rocket.Chat: Users can login with any password via the EE ddp-streamer-service CVSS 4.0CRITICAL 9.3
  • TI-2026-40188 Rocket.Chat: Email Parameter Fallback Leads To Account Takeover Within Apple OAuth CVSS 4.0CRITICAL 9.3
See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences