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TI-2026-25221 Aliases CVE-2026-32729

Runtipi has a TOTP two-factor authentication bypass via unrestricted brute-force on `/api/auth/verify-totp`

Priority HIGH 73CWE-307Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-307.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00354 29th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed runtipi (runtipi): 4.8.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
runtipiruntipibefore 4.8.14.8.1Patch availableCNA
  • runtipi Vendorruntipi Affected before 4.8.1 Fixed in 4.8.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:runtipi:runtipi:*:*:*:*:*:*:*:*before 4.8.1Vulnerableruntipi
  • cpe:2.3:a:runtipi:runtipi:*:*:*:*:*:*:*:* Versions before 4.8.1 Vulnerable ·runtipi

Remediation

  • Fix · CNA runtipi (runtipi) Fixed in 4.8.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-32729

References

Exploit 1

  • TI-2026-24433 Runtipi unauthenticated /api/auth/reset-password allows operator account takeover during active reset window CVSS 3.1CRITICAL 9.8
  • TI-2026-19447 Runtipi is Vulnerable to Authenticated Arbitrary Remote Code Execution CVSS 3.1HIGH 8.8
  • TI-2026-20279 Runtipi vulnerable to unauthenticated docker-compose.yml Overwrite via Path Traversal CVSS 3.1HIGH 8.8

Sources

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