CVE-2025-67717 Zitadel Discloses the Total Number of Instance Users

What is CVE-2025-67717?

CVE-2025-67717 is a medium-severity vulnerability in zitadel, published on 11 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

ZITADEL is an open-source identity infrastructure tool. Versions 2.44.0 through 3.4.4 and 4.0.0-rc.1 through 4.7.1 disclose the total number of instance users to authenticated users, regardless of their specific permissions. While this does not leak individual user data or PII, disclosing the total user count via the totalResult field constitutes an information disclosure vulnerability that may be sensitive in certain contexts. This issue is fixed in versions 3.4.5 and 4.7.2.

Weakness: CWE-497

Which versions are affected by CVE-2025-67717?

7 open source packages ship an affected version, including github.com/zitadel/zitadel. It affects 1 product.

Products include Zitadel Zitadel.

How do I fix CVE-2025-67717?

Upgrade github.com/zitadel/zitadel to a fixed version for your release line: 1.80.0-v2.20.0.20251210121356-826039c6208f, 3.4.5 or 4.7.2.

Is CVE-2025-67717 being exploited?

There is no known exploitation of CVE-2025-67717 in the wild and no public exploit code.

Other vulnerabilities in zitadel

• CVE-2026-29191 ZITADEL: 1-Click Account Takeover via XSS in /saml-post Endpoint Critical 9.3
• CVE-2025-67494 ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login Critical 9.3
• CVE-2025-27507 IDOR Vulnerabilities in ZITADEL's Admin API that Primarily Impact LDAP Configurations Critical 9.0
• CVE-2025-64103 Zitadel Bypass Second Authentication Factor High 8.7
• CVE-2025-31123 Zitadel Expired JWT Keys Usable for Authorization Grants High 8.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-f4cf-9rvr-2rcx, GO-2025-4227.