CVEvulnerability

CVE-2026-59354

8.8 HIGH Published 2026-08-27 Modified 2026-09-01 Official page ↗
Status
Analyzed
Published
2026-08-27
Last modified
2026-09-01
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.6 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-20

Description

In versions of Spring Security's OAuth2 Authorization Server module 7.0.0 through 7.0.4, when Dynamic Client Registration is explicitly enabled, the registration endpoint performs insufficient validation of certain client metadata fields supplied by the registering client. An attacker who possesses a valid Initial Access Token can register a malicious client with crafted metadata, which, depending on server configuration and how the metadata is later rendered or used, may result in Stored Cross-Site Scripting (XSS), Privilege Escalation, or Server-Side Request Forgery (SSRF).

Affected configurations

• vmware spring security (>= 7.0.0 < 7.0.5)

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References