CVE-2026-24059
Severity CVSS v4.0:
Pending analysis
Type:
CWE-269
Improper Privilege Management
Publication date:
13/08/2026
Last modified:
26/08/2026
Description
The GET /api/v1/user/actions/runners/registration-token endpoint (and its owner- and repository-level equivalents) creates a new runner registration token if none exists, yet the API scope middleware classifies it as read-only because it is a GET request. A holder of a leaked read:user-scoped token can therefore mint a registration token and register a malicious Actions runner that executes workflow jobs with access to repository secrets and source code.
Impact
Base Score 3.x
6.50
Severity 3.x
MEDIUM