CVE-2026-41859

A network man-in-the-middle between nats-sync and the BOSH director can steal the director credentials (Basic auth header or UAA client secret) and can tamper with the VM list that is written into the NATS authorization file. Stolen credentials grant administrative director access. UsersSync#bosh_api_response_body builds a Net::HTTP client with verify_mode = OpenSSL::SSL::VERIFY_NONE for every director call (/info, /deployments, /deployments/<name>/vms). Affected versions: - BOSH: all versions prior to v282.1.9 (inclusive); fixed in v282.1.9 or later

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.cloudfoundry.org/blog/cve-2026-41859-missing-tls-in-nats-sync/

Configurations

No configuration.

History

22 Jul 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Un man-in-the-middle de red entre nats-sync y el director de BOSH puede robar las credenciales del director (encabezado de autenticación básica o secreto de cliente UAA) y puede manipular la lista de VM que se escribe en el archivo de autorización de NATS. Las credenciales robadas otorgan acceso administrativo al director. UsersSync#bosh_api_response_body construye un cliente Net::HTTP con verify_mode = OpenSSL::SSL::VERIFY_NONE para cada llamada al director (/info, /deployments, /deployments/<name>/vms). Versiones afectadas: - BOSH: todas las versiones anteriores a la v282.1.9 (inclusive); corregido en la v282.1.9 o posterior

04 Jun 2026, 03:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-04 03:16

Updated : 2026-07-22 20:10

NVD link : CVE-2026-41859

Mitre link : CVE-2026-41859

CVE.ORG link : CVE-2026-41859

JSON object : View

Products Affected

No product.

CWE

CWE-295

Improper Certificate Validation

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