CVE-2026-49213 | THREATINT

Description

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.

PUBLISHED Reserved 2026-05-28 | Published 2026-07-10 | Updated 2026-07-13 | Assigner GitHub_M

HIGH: 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-918: Server-Side Request Forgery (SSRF)

Product status

< 3.17.2

affected

References

github.com/...bot.io/security/advisories/GHSA-qx46-p88f-xxm3 exploit

github.com/...bot.io/security/advisories/GHSA-qx46-p88f-xxm3

github.com/baptisteArno/typebot.io/pull/2511

github.com/...ommit/f56c3c3f771df13a8c11e88f500dfdd78981bed1

github.com/baptisteArno/typebot.io/releases/tag/v3.17.2

cve.org (CVE-2026-49213)

nvd.nist.gov (CVE-2026-49213)

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