CVE-2026-56767 Maxun < 0.0.42 - Cross-Tenant IDOR in Storage and Webhook API Handlers
Authenticated users can bypass ownership checks to access, modify, or execute other users' robots and steal plaintext OAuth tokens.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-56767?
CVE-2026-56767 is a high-severity missing authorization vulnerability in getmaxun maxun, published on 25 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-56767?
How do I fix CVE-2026-56767?
No fix has been published for CVE-2026-56767 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-56767 being exploited?
There is no known exploitation of CVE-2026-56767 in the wild and no public exploit code.
Sources
Also known as GHSA-44p3-ph5c-h5h3.