CVE-2026-59354: Spring Security OAuth2 Authorization Server: Insufficient validation of Dynamic Client Registration metadata
VMware by Broadcom · Spring Security (OAuth2 Authorization Server module)
Vendor fix available · Affected: VMware by Broadcom Spring Security (OAuth2 Authorization Server module) · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 42% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- VMware by Broadcom · Spring Security (OAuth2 Authorization Server module)from 7.0.0 up to and including 7.0.4
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- VMware by Broadcom
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-59354 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.