CVE-2026-80184 Auth bypass in Keystone
Attackers can bypass project scope restrictions in OpenStack Keystone by reauthenticating delegated tokens, gaining unauthorized access to other projects.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-80184?
CVE-2026-80184 is a high-severity authentication bypass vulnerability in OpenStack Keystone, published on 25 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In OpenStack Keystone before 29.0.3, tokens obtained via delegated authentication mechanisms (OAuth1 access tokens, application credentials, trusts) could be submitted to the token-method authentication path for reauthentication to escape their intended project scope. When an application credential token was presented with no explicit scope, Keystone would issue a new token scoped to the credential owner's default project rather than the project for which the credential was issued, bypassing the intended project boundary. All Keystone deployments that permit delegated authentication through OAuth1 access tokens, application credentials, or trusts are affected.
Weakness: CWE-863
Which versions are affected by CVE-2026-80184?
How do I fix CVE-2026-80184?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-80184 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-80184 exists.
Sources
Also known as DEBIAN-CVE-2026-80184, GHSA-x764-fvmq-4x2r, UBUNTU-CVE-2026-80184.