Is CVE-2026-105212 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-105212 being exploited in the wild.

How severe is CVE-2026-105212?

High severity, with a CVSS score of 7.5, published 4 October 2026.

Which products and versions are affected?

ZITADEL 3.0.0 to 3.4.13, 4.0.0 to 4.16.1.

Is there a fix for CVE-2026-105212?

Yes: fixed in ZITADEL 3.4.14, 4.16.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-105212 attacked?

It is attacked over the network.

Am I affected by CVE-2026-105212?

Check whether you run ZITADEL at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-105212: ZITADEL authentication bypass in Login UI via passkey enrollment

CVE-2026-105212 · Severity: high · CVSS 7.5 · Published 2026-10-04

ZITADEL is an identity and access management platform that hosts user authentication interfaces. An unauthenticated attacker who knows only a victim's username can register a malicious passkey on the victim's account without providing a password or proof of ownership, then use that passkey to log in and take over the account. This bypasses all existing passwords and multi-factor authentication protections.

Technologies: ZITADEL. Vendors: ZITADEL.

Quick answers

Is CVE-2026-105212 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-105212 being exploited in the wild.
How severe is CVE-2026-105212?: High severity, with a CVSS score of 7.5, published 4 October 2026.
Which products and versions are affected?: ZITADEL 3.0.0 to 3.4.13, 4.0.0 to 4.16.1.
Is there a fix for CVE-2026-105212?: Yes: fixed in ZITADEL 3.4.14, 4.16.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-105212 attacked?: It is attacked over the network.
Am I affected by CVE-2026-105212?: Check whether you run ZITADEL at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: ZITADEL 3.4.14, 4.16.2

Technical details

ZITADEL's hosted Login V1 and Login V2 UIs accept authenticator (passkey) enrollment on identify-only login sessions—after a username is submitted but before primary factor verification. An unauthenticated attacker knowing only a valid username can enroll an attacker-controlled authenticator and complete login, circumventing password and MFA requirements. The vulnerability stems from missing authentication checks before allowing authenticator enrollment within the login flow.

Affected products

ZITADEL ZITADEL 3.0.0 to 3.4.13, 4.0.0 to 4.16.1

Timeline

2026-07-29: disclosed
2026-10-04: advisory

References

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