Is this vulnerability remotely exploitable?

Yes. As long as the `/api/auth/verify-totp` endpoint is reachable over the network and an attacker has valid user credentials, they can perform the brute-force attack remotely without local access.

Does an attacker need valid credentials to exploit this issue?

In practice, yes. The vulnerability is in the second factor step; an attacker must first pass the primary authentication stage using a valid username/password combination before they can start brute-forcing the TOTP code.

What is the safest general fix pattern for this vulnerability class?

Implement a centralized authentication protection layer that applies to all login and 2FA endpoints, including: - Per-account and per-source rate limiting, - Explicit tracking of failed attempts, - Temporary or permanent lockout thresholds, and - Progressive delays after failures. Ensuring that these controls are configurable and consistently enforced across all authentication workflows is key.

Severity:

HIGH RISK

(8.1)

Missing Brute-Force Protection on TOTP Verification (CWE-307) in Runtipi /api/auth/verify-totp

CVE-2026-32729

Published:

Mar 16, 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

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HIGH RISK

HIGH

(8.8)

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

Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Authentication and Authorization

CWE:

CWE-307;CWE-799

Impact:

Two-Factor Authentication Bypass and Account Compromise

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Authentication and Authorization

CWE:

CWE-307;CWE-799

Impact:

Two-Factor Authentication Bypass and Account Compromise

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

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Missing Brute-Force Protection on TOTP Verification (CWE-307) in Runtipi /api/auth/verify-totp

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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