What is GHSA-j55w-p4wc-frwh?

GHSA-j55w-p4wc-frwh is a security advisory published by GitHub Security Advisories with High severity. ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains a missing authentication flaw in the...

Which CVE IDs does GHSA-j55w-p4wc-frwh cover?

GHSA-j55w-p4wc-frwh covers the following CVE IDs: CVE-2026-105210. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-j55w-p4wc-frwh?

GHSA-j55w-p4wc-frwh has a CVSS v3 base score of 8.2, published by GitHub Security Advisories.

GHSA-j55w-p4wc-frwhHighCVSS 8.2

ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains a missing authentication flaw in the...

Vendor

GitHub Security Advisories

Published

October 4, 2026

Last Modified

October 4, 2026

🔗 CVE IDs covered (1)

CVE-2026-105210 →

📋 Description

ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains a missing authentication flaw in the hosted Login V1 UI, whose second-factor enrollment and initialization handlers act on an identify-only session before any primary factor is verified. Attackers knowing only a victim's login name can enroll attacker-controlled TOTP, OTP-SMS, OTP-Email, or U2F factors, overwrite the verified phone number, and enumerate users through discrepant errors.

🔗 References (4)

https://github.com/zitadel/zitadel/security/advisories/GHSA-72q5-mv5c-vxv4
https://nvd.nist.gov/vuln/detail/CVE-2026-105210
https://www.vulncheck.com/advisories/zitadel-before-4.17.1-unauthenticated-mfa-enrollment-via-login-v1-init-handlers
https://github.com/advisories/GHSA-j55w-p4wc-frwh