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CVE-2026-54693— ZITADEL Users Can Self-Verify Email/Phone via API

Quick assessment

Affected
zitadel zitadel
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ZITADEL是瑞士ZITADEL公司开源的一个身份和访问管理平台。 zitadel 2.43.0版本至2.71.19版本、3.0.0版本至3.4.11之前版本和4.0.0版本至4.15.1之前版本存在授权问题漏洞，该漏洞源于email和phone自管理API路径缺少必要的权限验证，允许用户在未授权情况下请求返回验证码，从而声明不属于自己的邮箱或电话所有权并绕过基于邮箱或电话的安全策略。

CVSS 8.2 · High EPSS 0.34% · P28

Possible ATT&CK Techniques 1 AI

T1098.005 · Device Registration

Affected Version Matrix 3

VendorProduct Version RangeStatus
zitadel zitadel >= 2.43.0, <= 2.71.19 affected
>= 3.0.0-rc.1, < 3.4.11 affected
>= 4.0.0-rc.1, < 4.15.1 affected
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I. Basic Information for CVE-2026-54693

Vulnerability Information
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Vulnerability Title
ZITADEL Users Can Self-Verify Email/Phone via API
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
zitadel 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZITADEL是瑞士ZITADEL公司开源的一个身份和访问管理平台。 zitadel 2.43.0版本至2.71.19版本、3.0.0版本至3.4.11之前版本和4.0.0版本至4.15.1之前版本存在授权问题漏洞，该漏洞源于email和phone自管理API路径缺少必要的权限验证，允许用户在未授权情况下请求返回验证码，从而声明不属于自己的邮箱或电话所有权并绕过基于邮箱或电话的安全策略。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
zitadel zitadel >= 2.43.0, <= 2.71.19 -

II. Public POCs for CVE-2026-54693

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 10656 chars
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III. Intelligence Information for CVE-2026-54693

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Vendor Advisories for CVE-2026-54693 (1)

Vendor Pages for CVE-2026-54693 (2)

IV. Related Vulnerabilities

Same product: zitadel
Same vendor: zitadel
Same weakness: CWE-863

V. Comments for CVE-2026-54693

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