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CVE-2026-62862— TypeBot: Account takeover via brute-forceable 6-digit magic-link code

Quick assessment

Affected
baptisteArno typebot.io
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Typebot是Typebot公司开源的一款集成人工智能的智能客服对话系统。 Typebot 3.17.1及之前版本存在安全漏洞，该漏洞源于默认无密码邮件魔术链接认证使用Math.random()生成6位登录代码，且验证回调无尝试限制、锁定或CSRF保护，容易受到登录代码暴力破解攻击，可能导致账户接管，匿名攻击者可获取受害者的完整访问权限。

CVSS 9.1 · Critical EPSS 0.53% · P45

Affected Version Matrix 1

VendorProduct Version RangeStatus
baptisteArno typebot.io < 3.18.0 affected
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I. Basic Information for CVE-2026-62862

Vulnerability Information
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Vulnerability Title
TypeBot: Account takeover via brute-forceable 6-digit magic-link code
Source: CVE Program / CVE List V5
Vulnerability Description
Typebot is an open-source chatbot builder. In self-hosted versions up to and including 3.17.1, the default passwordless email magic-link authentication is vulnerable to login-code brute forcing that leads to account takeover. The email provider overrides NextAuth's default cryptographically secure token with a 6-digit code generated using Math.random(), reducing the keyspace to 900,000 with a 10-minute expiry, and the code itself is the raw value placed in the magic link. The verification callback enforces no attempt limit, lockout, or CSRF protection, and an incorrect guess does not consume the real code because the adapter returns null on a not-found token, so a valid code survives unlimited guessing within its lifetime. The only rate limiter applies to the code-sending path and is keyed on the client-controlled X-Forwarded-For header, allowing an attacker to request many concurrent live codes for one victim and further raise the odds of a matching guess. As a result, an anonymous attacker who knows a victim's email address can brute-force the callback and obtain an authenticated session as that user with no victim interaction, gaining full access to the victim's bots, results, and connected integration credentials. Deployments configured for OAuth or SSO only, with no email provider, are not affected. This issue is fixed in version 3.18.0
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Typebot 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Typebot是Typebot公司开源的一款集成人工智能的智能客服对话系统。 Typebot 3.17.1及之前版本存在安全漏洞，该漏洞源于默认无密码邮件魔术链接认证使用Math.random()生成6位登录代码，且验证回调无尝试限制、锁定或CSRF保护，容易受到登录代码暴力破解攻击，可能导致账户接管，匿名攻击者可获取受害者的完整访问权限。
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
baptisteArno typebot.io < 3.18.0 -

II. Public POCs for CVE-2026-62862

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III. Intelligence Information for CVE-2026-62862

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Patches & Fixes for CVE-2026-62862 (1)

Vendor Advisories for CVE-2026-62862 (1)

Vendor Pages for CVE-2026-62862 (1)

Same Patch Batch · baptisteArno · 2026-08-25 · 3 CVEs total

CVE-2026-62865 8.7 HIGH TypeBot: Arbitrary server file read via Send Email block attachment path
CVE-2026-62861 6.4 MEDIUM TypeBot: Cross-tenant custom-domain removal via unbound `name` in handleDeleteCustomDomain

IV. Related Vulnerabilities

Same product: typebot.io
Same vendor: baptisteArno
Same weakness: CWE-307