CVE-2026-105211

Published: Ott 04, 2026 Last Modified: Ott 04, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,2
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 8,1
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

ZITADEL before 4.17.1 contains an authentication bypass vulnerability in Login V2 that allows unauthenticated attackers to take over accounts by obtaining OTP codes via the returnCode delivery type. Attackers knowing a login name of a victim with OTP-Email and OTP-SMS enrolled can read both codes from server-action responses to gain MFA-authenticated sessions, including administrator takeover.

200

Exposure of Sensitive Information to an Unauthorized Actor

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality
Potential Impacts:
Read Application Data
Applicable Platforms
Technologies: Not Technology-Specific, Web Based, Mobile
Likelihood of Exploit: High
View CWE Details
https://github.com/zitadel/zitadel/security/advisories/GHSA…
https://github.com/zitadel/zitadel/security/advisories/GHSA-3gwm-5wx8-4gm6
https://www.vulncheck.com/advisories/zitadel-before-4.17.1-…
https://www.vulncheck.com/advisories/zitadel-before-4.17.1-authentication-bypas…