CVE-2026-56310 Cap-go - Authorization Bypass in Organization Members Endpoint via API Key Scope Bypass
Attackers with org-limited API keys can bypass scope restrictions to read sensitive membership data from unauthorized organizations.
- 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-2026-56310?
CVE-2026-56310 is a medium-severity missing authorization vulnerability in Cap-go capgo, published on 24 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Cap-go before 12.128.2 contains an authorization bypass vulnerability in the GET /organization/members endpoint that allows org-limited API keys to bypass limited_to_orgs restrictions. Attackers with org-limited API keys can read membership data including uid, email, image_url, role, and is_tmp from organizations outside their assigned scope.
Weakness: CWE-285
Which versions are affected by CVE-2026-56310?
How do I fix CVE-2026-56310?
No fix has been published for CVE-2026-56310 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-2026-56310 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56310 exists.
Sources
Also known as GHSA-q7xv-p34q-v365.