CVE-2026-54693: Auth Bypass

Description

ZITADEL is an open source identity management platform. From 2.43.0 through 2.71.19, from 3.0.0 until 3.4.11, and from 4.0.0 until 4.15.1, the email and phone self-management API paths in internal/command/user_v2_email.go, internal/command/user_v2_phone.go, and internal/command/user_v2_human.go allowed users to request returned verification codes without the required permission, allowing users to claim ownership of email addresses or phone numbers they do not control and bypass email-based or phone-based security policies. This issue is fixed in versions 3.4.11 and 4.15.1.

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Weakness Type (CWE)

CWE-863 Incorrect Authorization

References

Other References

https://github.com/zitadel/zitadel/commit/90f310212d3a5075084a603bf61fed549c92956d https://github.com/zitadel/zitadel/commit/a1748b2f0326ddf7be0de44b4f980ae2c07c0151 https://github.com/zitadel/zitadel/commit/ed09b3df7f43e870423e4d8f2757e6894481604f https://github.com/zitadel/zitadel/releases/tag/v3.4.11 https://github.com/zitadel/zitadel/releases/tag/v4.15.1 https://github.com/zitadel/zitadel/security/advisories/GHSA-jq8w-8q2f-ffm9

Frequently Asked Questions

What is CVE-2026-54693? +

ZITADEL is an open source identity management platform. From 2.43.0 through 2.71.19, from 3.0.0 until 3.4.11, and from 4.0.0 until 4.15.1, the email and phone self-management API paths in internal/command/user_v2_email.go, internal/command/user_v2_phone.go, and internal/command/user_v2_human.go allowed users to request returned verification codes without the required permission, allowing users to claim ownership of email addresses or phone numbers they do not control and bypass email-based or phone-based security policies. This issue is fixed in versions 3.4.11 and 4.15.1.

How do I check if I'm vulnerable to CVE-2026-54693? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-54693