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CVE-2026-39965— TypeBot: SSRF via Open Redirect Bypass in HTTP Request and Code Blocks

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Baptiste Arnaud个人开发者的一个开源聊天机器人构建器。 Typebot 3.15.2及之前版本存在安全漏洞，该漏洞源于HTTP请求块和代码块通过validateHttpReqUrl()验证初始请求URL，但HTTP客户端在302重定向后未重新验证目标，可能导致服务端请求伪造。以下版本受到影响：3.15.2及之前版本。

CVSS 7.7 · High EPSS 0.24% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
baptisteArno typebot.io < 3.16.0 affected
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I. Basic Information for CVE-2026-39965

Vulnerability Information
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Vulnerability Title
TypeBot: SSRF via Open Redirect Bypass in HTTP Request and Code Blocks
Source: CVE Program / CVE List V5
Vulnerability Description
TypeBot is a chatbot builder tool. Versions 3.15.2 and prior contain an SSRF via Open Redirect Bypass as the HTTP Request block and Code block validate the initial request URL via validateHttpReqUrl() to block private IPs and cloud metadata hostnames. However, the HTTP clients (ky and fetch) follow 302 redirects without re-validating the redirect destination. An authenticated user can point a bot block to an attacker-controlled server that responds with a redirect to an internal IP, causing the Typebot server to reach internal services. An authenticated Typebot user can reach AWS metadata (169.254.169.254), private subnets, and container-internal services. Exploitable to extract cloud IAM credentials or probe internal APIs inaccessible from the internet. This issue has been fixed in version 3.16.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Typebot 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Typebot是Baptiste Arnaud个人开发者的一个开源聊天机器人构建器。 Typebot 3.15.2及之前版本存在安全漏洞，该漏洞源于HTTP请求块和代码块通过validateHttpReqUrl()验证初始请求URL，但HTTP客户端在302重定向后未重新验证目标，可能导致服务端请求伪造。以下版本受到影响：3.15.2及之前版本。
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 < 3.16.0 -

II. Public POCs for CVE-2026-39965

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III. Intelligence Information for CVE-2026-39965

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Vendor Advisories for CVE-2026-39965 (1)

Vendor Pages for CVE-2026-39965 (1)

Same Patch Batch · baptisteArno · 2026-05-22 · 11 CVEs total

CVE-2026-33712 10.0 CRITICAL TypeBot: Unauthenticated SSRF via isolated-vm fetch in preview chat endpoint bypasses SSRF
CVE-2026-28445 8.7 HIGH Typebot: Stored XSS via Rating Block Custom Icon Bypasses isUnsafe Sandbox in Builder Prev
CVE-2026-34207 7.6 HIGH TypeBot: SSRF Protection Bypass via DNS-Resolved Hostnames in Webhook / HTTP Request Valid
CVE-2026-39968 7.1 HIGH TypeBot: Cross-Workspace Credential Theft via Bot-Engine Preview Endpoint
CVE-2026-28444 6.5 MEDIUM Typebot: IDOR in Result Logs Endpoint Allows Cross-Workspace Data Disclosure
CVE-2026-39966 6.5 MEDIUM TypeBot: Async filter() bypasses authorization, allowing IDOR in getLinkedTypebots and lea
CVE-2026-39969 6.5 MEDIUM TypeBot: WhatsApp Webhook Endpoint Missing Signature Verification
CVE-2026-39964 5.4 MEDIUM TypeBot: Stored XSS via javascript: URI in text bubble links — bot author executes JS on v
CVE-2026-39967 3.1 LOW TypeBot: Cross-Typebot Result Data Access via Missing typebotId Filter
CVE-2026-39970 TypeBot: Stored Cross-Site Scripting (XSS) via SVG File Upload On Profile Picture Form

IV. Related Vulnerabilities

Same product: typebot.io
Same vendor: baptisteArno
Same weakness: CWE-918

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