CVE-2026-119129 ZITADEL - Broken Access Control

ZITADEL 3.0.0 through 3.4.15 and 4.0.0 before 4.19.5 contain a broken access control vulnerability in Login V2 caused by missing authorization checks, letting attackers approve OAuth 2.0 device authorizations using a victim's session without consent, exploit requires victim to be signed in.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.28% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Published
29 October 2026
Updated
31 October 2026
Weakness
CWE-862

Vendor fix

Update to version 3.4.16, 4.19.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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