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TI-2026-67549 Aliases CVE-2026-105213GHSA-3fc9-77fj-j3c7

ZITADEL before 4.17.1 Authentication Bypass via Login V2 for Deactivated Organizations

Priority MEDIUM 44CWE-287Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

ZITADEL 4.x before 4.17.1 does not check an organization's inactive state during Login V2 authentication, verifying only the individual user's status. Users of a deactivated organization who hold valid credentials, an existing session, or a refresh token can still sign in, create sessions, and obtain or refresh tokens.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Fix Fixed zitadel (zitadel): 4.17.1

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
zitadelzitadelbefore 4.17.14.17.1Patch availableCNA
  • zitadel Vendorzitadel Affected before 4.17.1 Fixed in 4.17.1 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:zitadel:zitadel:*:*:*:*:*:*:*:*——zitadel
  • cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* Versions — — ·zitadel

Remediation

  • Fix · CNA zitadel (zitadel) Fixed in 4.17.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    zitadel 4.17.1

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-67546 ZITADEL before 4.17.1 Unauthenticated MFA Enrollment via Login V1 Init HandlersPriority MEDIUM 44
    • TI-2026-67547 ZITADEL before 4.17.1 Authentication Bypass via Login V2 OTP returnCodePriority MEDIUM 42
    • TI-2026-67545 ZITADEL before 3.4.15 and 4.17.1 Cross-Organization Account Takeover via Passkey EnrollmentPriority LOW 39
    Show all 4 records →

Timeline

  1. 2026-10-04 Threatist record created from CVE-2026-105213
  2. 2026-10-04 Alias added: GHSA-3fc9-77fj-j3c7
  3. 2026-10-05 CISA SSVC decision points changed

References

Advisory 1

  • TI-2024-26607 ZITADEL Vulnerable to Session Information Leakage CVSS 3.1MEDIUM 6.5
  • TI-2026-67551 ZITADEL before 4.16.2 Account Pre-Hijacking via Forged External IdP Callback CVSS 4.0CRITICAL 9.3
  • TI-2026-67543 ZITADEL before 4.17.3 Account Takeover via External IdP Linking CVSS 4.0CRITICAL 9.3
  • TI-2025-41253 ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login CVSS 3.1CRITICAL 9.3
  • TI-2025-39554 Zitadel Bypass Second Authentication Factor CVSS 4.0HIGH 8.7
  • TI-2026-82647 ZITADEL Login V2 flaw lets attackers approve device authorizations CVSS 4.0HIGH 8.6
See all 77 →

Sources

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