CVE-2026-43001
Full vulnerability record from the local CVENow database.
Description
An issue was discovered in OpenStack Keystone before 29.0.2. POST /v3/credentials did not validate that the caller-supplied project_id for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential for project A to create an EC2 credential targeting project B; a subsequent /v3/ec2tokens exchange would then issue a Keystone token scoped to project B while still carrying the original app_cred_id, enabling cross-project lateral movement within the credential owner's role footprint.
Severity
HIGH
CVSS score
8.0
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-05-01 09:16:17.273000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
"id": "CVE-2026-43001",
"sourceIdentifier": "[email protected]",
"published": "2026-05-01T09:16:17.273",
"lastModified": "2026-10-26T21:10:00.170",
"vulnStatus": "Modified",
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},
{
"lang": "es",
"value": "Se descubrió un problema en OpenStack Keystone versiones 13 a 29. POST /v3/credentials no validaba que el project_id proporcionado por el llamador para una credencial de tipo EC2 coincidiera con el proyecto de la credencial de aplicación autenticadora. Esto permitía a un atacante que poseía una credencial de aplicación sin restricciones para el proyecto A crear una credencial EC2 dirigida al proyecto B; un intercambio posterior de /v3/ec2tokens emitiría entonces un token de Keystone con ámbito en el proyecto B mientras aún portaba el app_cred_id original, lo que permitía el movimiento lateral entre proyectos dentro de la huella de rol del propietario de la credencial."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
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"source": "[email protected]",
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