Description
An issue was discovered in OpenStack Keystone 13 through 29. POST /v3/credentials did not validate that the caller-supplied project_id for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential for project A to create an EC2 credential targeting project B; a subsequent /v3/ec2tokens exchange would then issue a Keystone token scoped to project B while still carrying the original app_cred_id, enabling cross-project lateral movement within the credential owner-s role footprint.
CVSS 7.9EPSS 0.45599999999999996%Risk 0.82
View source- Published
- 2026-05-01 09:16:17
- Affected versions
- >=13,<30
- Type
- Core software
- Vector
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L