CVE-2020-12689

HIGH
8.8
CVSS Score
Published: May 6, 2020 at 11:43 PM UTC
Updated: June 17, 2026 at 02:52 AM UTC
2 products affected across 2 vendorsUbuntu LinuxKeystone

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Severity
HIGH8.8
Exploit prediction
EPSS 2%

Description

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any user authenticated within a limited scope (trust/oauth/application credential) can create an EC2 credential with an escalated permission, such as obtaining admin while the user is on a limited viewer role. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 15.0.116.0.0
Affected range stops below 15.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-269

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