Maxun < 0.0.42 - Cross-Tenant IDOR in Storage and Webhook API Handlers | Advisories

Advisories

Maxun < 0.0.42 - Cross-Tenant IDOR in Storage and Webhook API Handlers

severity: high
date: 6/25/2026
Affecting: Maxun < 0.0.42
CVE: CVE-2026-56767
CWE: CWE-862 Missing Authorization
CVSS: 8.7
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: GitHub Issue
Pull Request
Patch Commit
Credit: George Chen
Description: Maxun before 0.0.42 contains a cross-tenant insecure direct object reference vulnerability in storage and webhook API handlers that allows authenticated users to access other users' robots and OAuth tokens. Attackers can read plaintext Google and Airtable access tokens, modify, delete, or execute other users' robots by bypassing ownership checks in API endpoints.

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