CVE-2026-21409

Improper authorization vulnerability exists in RICOH Streamline NX 3.5.1 to 24R3. If a man-in-the-middle attack is conducted on the communication between the affected product and its user, and some crafted request is processed by the product, the user's registration information and/or OIDC (OpenID Connect) tokens may be retrieved.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector : AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://jvn.jp/en/jp/JVN12770174/
https://www.ricoh.com/products/security/vulnerabilities/vul?id=ricoh-2025-000011

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) Existe una vulnerabilidad de autorización impropia en RICOH Streamline NX 3.5.1 a 24R3. Si se realiza un ataque man-in-the-middle en la comunicación entre el producto afectado y su usuario, y el producto procesa alguna solicitud manipulada, la información de registro del usuario y/o los tokens OIDC (OpenID Connect) pueden ser recuperados.

09 Jan 2026, 08:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-09 08:15

Updated : 2026-04-15 00:35

NVD link : CVE-2026-21409

Mitre link : CVE-2026-21409

CVE.ORG link : CVE-2026-21409

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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