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CVE-2026-119128

7.4, high

ZITADEL 4.0.0 before 4.19.5 contains an authentication bypass vulnerability in the Login V2 UI that allows unauthenticated attackers to…

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.4, high high CVSS v3.1
EPSS, next 30 days
n/a
Exploitation
No public evidence
Published
29 Oct 2026yesterday

Description

ZITADEL 4.0.0 before 4.19.5 contains an authentication bypass vulnerability in the Login V2 UI that allows unauthenticated attackers to set the first credential of users lacking any authentication method. Attackers can compute a valid verificationCheck cookie from the user ID and browser fingerprint to set a password, register a passkey, or link an identity provider, taking over the account.

Details

Vendor
Zitadel
Product
zitadel
Weakness
CWE-565 (opens in a new tab)
Status
Deferred
Updated
29 Oct 2026
Assigner
disclosure@vulncheck.com

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

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Zitadel CVEs

Every Zitadel CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-119127 ZITADEL 4.0.0 before 4.19.5 contains a host header injection vulnerability in the Login V2 UI that allows unauthenticated attackers to… 8.1, high
  • CVE-2026-109371 zitadel Missing Authentication for Critical Function Vulnerability EPSS 0.4% 8.2, high
  • CVE-2026-109372 zitadel Improper Authentication Vulnerability EPSS 0.4% 8.7, high
  • CVE-2026-109373 ZITADEL 3.0.0 before 4.19.2 contains an authentication bypass vulnerability in the Login V2 UI that allows unauthenticated attackers to… EPSS 0.4% 8.1, high

Beyond this page

Is CVE-2026-119128 in your network?

This page tells you how dangerous CVE-2026-119128 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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    Find it before attackers do

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 30 Oct 2026, not the live upstream state.