CVE-2026-105209: critical vulnerability in zitadel
ZITADEL before 3.4.15 and 4.17.1 Cross-Organization Account Takeover via Passkey Enrollment
Published · Updated
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.2%
exploitation probability
0.2%top 88% of all CVEs
observed exploitation
nono source reports it
ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains an improper authorization vulnerability: when issuing passkey or passwordless enrollment codes, it checks only the organization in the x-zitadel-orgid header, not the target user's organization. Attackers with user-write permission in one organization can obtain an enrollment code for a user in another organization on the same instance and register their own authenticator to take over that account.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Affected products
zitadel · zitadelRelated CVEs — zitadel
In the same product, most dangerous first.
CVE-2024-49757HIGHZitadel User Registration Bypass VulnerabilityEPSS 2.5%CVE-2022-36051HIGHBroken Authorization in ZITADEL ActionsEPSS 1.0%CVE-2024-28855HIGHZITADEL vulnerable to improper HTML sanitizationEPSS 0.8%CVE-2024-29892MEDIUMZITADEL's actions can overload reserved claimsEPSS 0.8%CVE-2023-49097HIGHZITADEL vulnerable account takeover via malicious host header injectionEPSS 0.8%CVE-2024-29891HIGHZITADEL Improper Content-Type Validation Leads to Account Takeover via Stored XSS + CSP BypassEPSS 0.8%