CVE-2026-56767
Maxun < 0.0.42 - Cross-Tenant IDOR in Storage and Webhook API Handlers
- State
- Published
- Severity
- 8.7 High
- Published
- Jun 25, 2026
- Updated
- Jul 14, 2026
- Reserved
- Jun 22, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
maxungetmaxun |
|
References
- GitHub Issuetechnical-description
- Pull Requestissue-tracking
- Patch Commitpatch
- https://www.vulncheck.com/advisories/maxun-cross-tenant-idor-in-storage-and-webhook-api-handlersthird-party-advisory
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