CVE-2026-56230 Capgo - Broken Object Level Authorization via x-limited-key-id Header
Authenticated attackers can bypass authorization checks by manipulating the x-limited-key-id header to access unauthorized cross-tenant resources.
- 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-2026-56230?
CVE-2026-56230 is a high-severity missing authorization vulnerability in Capgo, published on 30 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Capgo before 12.128.2 contains a broken object level authorization vulnerability in middlewareKey() that accepts the client-controlled x-limited-key-id header without validating ownership, allowing authenticated users to adopt cross-tenant limited keys. Attackers can supply another tenant's limited key ID to bypass authorization checks and access unauthorized cross-tenant resources across multiple API endpoints.
Weakness: CWE-639
Which versions are affected by CVE-2026-56230?
How do I fix CVE-2026-56230?
No fix has been published for CVE-2026-56230 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-2026-56230 being exploited?
There is no known exploitation of CVE-2026-56230 in the wild and no public exploit code.
Sources
Also known as GHSA-cppm-733w-hg86, GHSA-fmx4-fw5w-86gg.