CVE-2026-19278

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.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-19278
https://bugzilla.redhat.com/show_bug.cgi?id=2512524

Configurations

No configuration.

History

23 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Se encontró un fallo en el intercambio de tokens Auth Máquina a Máquina (M2M) de StackRox/RHACS Central. Cuando un administrador configura mapeos de roles M2M, el sistema utiliza expresiones regulares no ancladas para hacer coincidir los valores de las reclamaciones. Esto permite a un atacante con un token OpenID Connect (OIDC) válido, cuyo valor de reclamación es una supercadena de un patrón configurado, obtener acceso no autorizado a roles que no estaban destinados a recibir. Esto puede conducir a una escalada de privilegios dentro del sistema.

Information

Published : 2026-08-10 13:17

Updated : 2026-10-23 20:10

NVD link : CVE-2026-19278

Mitre link : CVE-2026-19278

CVE.ORG link : CVE-2026-19278

JSON object : View

Products Affected

No product.

CWE

CWE-625

Permissive Regular Expression

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