What’s Vulnerable › Vulnerabilities

CVE-2026-80184

• Severity: high (CVSS 7.6 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-25 · updated 2026-09-03
• Weakness: CWE-863

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.

Affected products

• OpenStack Keystone: from 13.0.0 before 27.0.3; from 28.0.0 before 28.0.3; from 29.0.0 before 29.0.3 — fixed in 27.0.3, 28.0.3, 29.0.3

How to fix

Upgrade to a fixed version: OpenStack Keystone 27.0.3, 28.0.3, 29.0.3. Check the vendor advisory for mitigations.

References

• https://launchpad.net/bugs/2158538
• https://security.openstack.org/ossa/OSSA-2026-037.html
• https://www.openwall.com/lists/oss-security/2026/08/25/5
• https://bugs.launchpad.net/keystone/+bug/2158538

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