CVE-2026-119129

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 devi…

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

8.1

8.1 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)

Timeline (UTC)

Published: 2026-10-29 16:18

Modified: 2026-10-29 18:17

NVD status: Deferred

Last synced 12 hours ago

Verified against the source API 2026-10-29 18:17 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-862

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://github.com/zitadel/zitadel/security/advisories/GHSA-qj3q-235g-qr6w disclosure@vulncheck.com
https://www.vulncheck.com/advisories/zitadel-3.0.0-through-3.4.15-and-4.0.0-before-4.19.5-... disclosure@vulncheck.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-29 18:17 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores