CVE-2026-19278
Stackrox: stackrox: privilege escalation via unanchored regular expressions in auth m2m role mappings
- State
- Published
- Severity
- 6.8 Medium
- Published
- Aug 10, 2026
- Updated
- Aug 11, 2026
- Reserved
- Aug 7, 2026
Description
A flaw was found in StackRox/RHACS Central's Auth Machine-to-Machine (M2M) token exchange. When an administrator configures M2M role mappings, the system uses unanchored regular expressions for matching claim values. This allows an attacker with a valid OpenID Connect (OIDC) token, whose claim value is a superstring of a configured pattern, to gain unauthorized access to roles they were not intended to receive. This can lead to privilege escalation within the system.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.8 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N | redhat |
Weaknesses
- CWE-625 Permissive Regular Expression
Affected Products
| Product | Versions |
|---|---|
Red Hat Advanced Cluster Security 4Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-19278vdb-entry
- RHBZ#2512524issue-tracking
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