SSRF and privilege escalation via unvalidated client metadata
Published Jul 16, 2026 · Updated Jul 16, 2026
Client-metadata validation flaws in Spring Authorization Server allow remote authenticated users to register malicious OAuth clients. The Dynamic Client Registration endpoints accept crafted metadata fields without sufficient validation and persist the resulting malicious client registration. Exploitation requires explicit endpoint enablement and a valid Initial Access Token; resulting actions can trigger stored XSS, SSRF, or privilege escalation, depending on server configuration.
Summary
What happened
Client-metadata validation flaws in Spring Authorization Server allow remote authenticated users to register malicious OAuth clients. The Dynamic Client Registration endpoints accept crafted metadata fields without sufficient validation and persist the resulting malicious client registration. Exploitation requires explicit endpoint enablement and a valid Initial Access Token; resulting actions can trigger stored XSS, SSRF, or privilege escalation, depending on server configuration.
The record
- CVE
- CVE-2026-22752
- Published
- Jul 16, 2026
- Updated
- Jul 16, 2026
- Vendor
- Spring
- Product
- Spring Authorization Server
- Classifications
- CWE-287, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 16, 2026CVE publishedPublication date reported by the CVE source.
- Jul 16, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.3.0 <=1.3.10
- Affected versionversion=1.4.0 <=1.4.9
- Affected versionversion=1.5.0 <=1.5.6
- Affected versionversion=7.0.0 <=7.0.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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