CVE-2026-49213CWE-918

TypeBot: SSRF protection bypass via IPv6 unspecified address in Typebot HTTP request execution

High · published July 10, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
37.9
In the wild
Unconfirmed
What it is

TypeBot is a chatbot builder tool. Prior to 3.17.2, Typebot's shared SSRF validator in packages/lib/src/ssrf/validateHttpReqUrl.ts can be bypassed with the IPv6 unspecified address :: because validateIPAddress blocks local, metadata, and private ranges but does not block :: or its expanded form. A workspace editor or creator can configure a server-side HTTP Request block or guarded script fetch to make the Typebot server connect to local HTTP services through safeKy, including flows triggered by POST /v1/typebots/{publicId}/startChat or POST /v1/sessions/{sessionId}/continueChat. This issue is fixed in version 3.17.2.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00448 · 37.9th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-07-10T21:33Z
EPSS history
Timeline
  • 10 JUL 21:33Z
    TypeBot: SSRF protection bypass via IPv6 unspecified address in Typebot HTTP request execution
    cvelistv5