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CVE-2026-109372

ZITADEL 3.0.0 before 4.19.2 Account Takeover via SAML Identity-Provider Confusion PUBLISHED

Description (CNA)

ZITADEL 4.x before 4.19.2 and 3.x through 3.4.15 contains an authentication bypass in the SAML identity-provider intent callback, which verifies the assertion signature using the provider named in the request URL but resolves the user from the login intent without checking they match. Attackers with organization-administrator permission can register a SAML provider with their own signing key to obtain authenticated sessions as any user linked to another SAML provider on the instance, including in other organizations.

Affected (CNA)

Vendor / productVersions
zitadel / zitadelaffected 3.0.0 before 4.19.2; unaffected 4.19.2

CWE

CWE-287

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.