CVE-2026-119129

8.6 high

ZITADEL 3.0.0 through 3.4.15 and 4.0.0 before 4.19.5 contains a missing authorization vulnerability in Login V2 that allows attackers to approve OAuth 2.0 device authorizations using a victim's existing session without consent. Attackers can send a signed-in user a link carrying the attacker's user code to obtain the victim's tokens, and can bypass project access settings via the OIDC device authorization API.

CVSS 4.0: 8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE: CWE-862
Published: 2026-10-29
Modified: 2026-10-29
Record from: the NVD, synced 2026-10-29

References

https://github.com/zitadel/zitadel/security/advisories/GHSA-qj3q-235g-qr6w
https://www.vulncheck.com/advisories/zitadel-3.0.0-through-3.4.15-and-4.0.0-before-4.19.5-account-takeover-via-device-authorization-approval

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