CVE-2026-32729
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
2Description
Runtipi is a personal homeserver orchestrator. Prior to 4.8.1, The Runtipi /api/auth/verify-totp endpoint does not enforce any rate limiting, attempt counting, or account lockout mechanism. An attacker who has obtained a user's valid credentials (via phishing, credential stuffing, or data breach) can brute-force the 6-digit TOTP code to completely bypass two-factor authentication. The TOTP verification session persists for 24 hours (default cache TTL), providing an excessive window during which the full 1,000,000-code keyspace (000000-999999) can be exhausted. At practical request rates (~500 req/s), the attack completes in approximately 33 minutes in the worst case. This vulnerability is fixed in 4.8.1.
Analysis
Critical authentication bypass vulnerability in Runtipi (versions prior to 4.8.1), a personal homeserver orchestrator, where attackers with stolen credentials can brute-force TOTP codes due to missing rate limiting. The vulnerability allows complete bypass of two-factor authentication in approximately 33 minutes, effectively compromising account security. …
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Remediation
Within 24 hours: Identify all Runtipi instances in your environment and document current versions. Within 7 days: Upgrade all Runtipi deployments to version 4.8.1 or later; conduct credential audit and reset passwords for all accounts, particularly administrative users. …
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