CVE-2026-47704

TypeBot vulnerable to cross-typebot webhook resume via unchecked `resultId` lineage allows unauthorized control of another bot's waiting session

State
Published
Severity
7.1 High
Published
Aug 11, 2026
Updated
Aug 12, 2026
Reserved
May 19, 2026

Read the record on cve.org

Description

TypeBot is a chatbot builder tool. Prior to version 3.17.0, an authenticated user who has read access to any typebot can resume a waiting webhook session that belongs to a different typebot by mixing an authorized `typebotId` and `blockId` and a foreign live `resultId`. The webhook resume handler authorizes the parent typebot first, but then resolves the descendant `result` only by `resultId`. As a result, an attacker can inject arbitrary webhook JSON into another typebot's suspended session and advance its execution without any access to the victim typebot. Version 3.17.0 patches the issue.

Scores

CVSSScoreVectorSource
4.07.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:NGitHub_M

Weaknesses

  • CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

ProductVersions
typebot.iobaptisteArno
  • < 3.17.0Affected

References

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