CVE-2026-59354
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What it is
ReportedIn 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). Source description excerpt; complete tracked detail loads below.
Source reported · Source: CVE record · Source last published: · Source last updated: · Tracker data as of:
What is affected
ReportedVMware by Broadcom — Spring Security (OAuth2 Authorization Server module). Product-level identification only; no affected-version conclusion is available from this field.
Source reported · Source: CVE record · Source last published: · Source last updated: · Tracker data as of:
Urgency and basis
ReportedTrack · 119.5
Tracker computed · Tracker decision tier from the evidence detailed below · Source last updated: · Tracker data as of:
Exploitation evidence
Not reportedNot reported by tracked sources.
What to do
ReportedA source remediation link is available. Validate that guidance against the affected product and your environment.
Source remediation ↗Source reported · Tracked source remediation field · Source last updated: · Tracker data as of:
Evidence detail
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