Is this vulnerability remotely exploitable?

Yes. If the enterprise DDP Streamer endpoint is reachable over the network, an attacker can attempt to authenticate through it without prior access, using valid credentials and bypassing additional checks.

What level of access does an attacker need to exploit this issue?

The attacker must be able to connect to the DDP Streamer and know or obtain valid user credentials (or other accepted login factors). No existing Rocket.Chat account or session is required; the weakness lies in how the login request is processed.

What is the safest general fix pattern for developers and maintainers?

Consolidate all authentication logic into a single, central mechanism and ensure every interface that can log users in (web UI, APIs, streaming services, integrations) invokes that mechanism. Explicitly enforce 2FA and account status checks there, and avoid duplicating or shortcutting authentication flows in secondary services.

Severity:

CRITICAL RISK

(9.8)

Authentication Bypass via Incomplete Login Validation (CWE-287) in Rocket.Chat Enterprise DDP Streamer

CVE-2026-30831

Published:

Mar 6, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 6, 2026

Vulnerability Type

Category:

Authentication Bypass

CWE:

CWE-287;CWE-304

Impact:

Account Takeover and 2FA Bypass

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Authentication Bypass

CWE:

CWE-287;CWE-304

Impact:

Account Takeover and 2FA Bypass

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Authentication Bypass via Incomplete Login Validation (CWE-287) in Rocket.Chat Enterprise DDP Streamer

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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