CVE-2026-39965: TypeBot: SSRF via Open Redirect Bypass in HTTP Request and Code Blocks
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Typebotto a version that resolves this vulnerability.Fixed in 3.16.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-39965?
CVE-2026-39965 has a high severity rating of 7.7.
How do I fix CVE-2026-39965?
To fix CVE-2026-39965, upgrade to TypeBot version 3.16.0 or later.
What type of vulnerability is CVE-2026-39965?
CVE-2026-39965 is classified as a Server-Side Request Forgery (SSRF) vulnerability.
What impact does CVE-2026-39965 have on TypeBot?
CVE-2026-39965 allows attackers to bypass URL validation, potentially accessing private IPs and cloud metadata.
Which versions of TypeBot are affected by CVE-2026-39965?
TypeBot versions 3.15.2 and prior are affected by CVE-2026-39965.