CVE-2026-56767
Maxun < 0.0.42 - Cross-Tenant IDOR in Storage and Webhook API Handlers
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-862 |
| Vendor | getmaxun |
| Product | maxun |
| Published | Jun 25, 2026 |
| Last Updated | Jun 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
getmaxun / maxun
0 < 0.0.42
References
github.com: https://github.com/getmaxun/maxun/issues/1079 github.com: https://github.com/getmaxun/maxun/pull/1088 github.com: https://github.com/getmaxun/maxun/commit/11db0257531f1c23dec94727793c9444ee2873cf vulncheck.com: https://www.vulncheck.com/advisories/maxun-cross-tenant-idor-in-storage-and-webhook-api-handlers
Credits
George Chen