# CVE-2026-19278

## Summary

- **CVE ID:** CVE-2026-19278
- **Severity:** MEDIUM
- **CVSS Score:** 6.8 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-625
- **Published:** Aug 10, 2026
- **Last Modified:** Aug 11, 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.

## Affected Products

No affected products listed.

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-19278)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2512524)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 11.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._