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Advisory severityCritical9.6VMware (Broadcom)

Critical [CVE-2026-59354] Spring Security: In versions of Spring Security's OAuth2 Authorization Server module 7.0.0 through 7.0.4, when Dynamic Client Registra…

This critical-severity VMware (Broadcom) advisory covers CVE-2026-59354 affecting Spring Security (OAuth2 Authorization Server module).

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-59354 Source published Source updated

VulniPulse record published Record updated

CVE-2026-59354
Affected products & platforms
VMware (Broadcom)Tanzu / Spring
Open source advisory

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Summary

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 product named by the advisory: Spring Security (OAuth2 Authorization Server module).

Affected versions
  • 7.0.0
  • 7.0.4

NVD record · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

NVD record · high-confidence parse· fetched 2 months ago·verify at source

Mitigation

The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.

NVD record · high-confidence parse· fetched 2 months ago·verify at source

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