CVE-2026-105209 (GCVE-0-2026-105209)

Vulnerability from cvelistv5 – Published: 2026-10-04 13:10 – Updated: 2026-10-04 13:10
VLAI
Title
ZITADEL before 3.4.15 and 4.17.1 Cross-Organization Account Takeover via Passkey Enrollment
Summary
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.
Severity
9.3 (Critical)
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
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
zitadel zitadel Affected: 0 , < 4.17.1 (semver)
Unaffected: 4.17.1 (semver)
guessed Create a notification for this product.
zitadel zitadel Affected: 0 , < 3.4.15 (semver)
Unaffected: 3.4.15 (semver)
guessed Create a notification for this product.
Date Public
2026-08-14 00:00
Credits
rud rz1027 lyhtheori AdamKorcz IAM-marco grvijayan
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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