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CVE-2026-22752 is a critical vulnerability in Spring Authorization Server caused by insufficient validation of certain client metadata fields processed by Dynamic Client Registration endpoints when that feature is explicitly enabled. An attacker who can access the registration workflow can submit crafted client metadata during dynamic client creation. Depending on how the authorization server is configured and how the supplied metadata is later consumed, the flaw can enable authentication or authorization control bypass conditions and can also expose downstream attack paths including stored cross-site scripting, server-side request forgery, and privilege escalation. Affected versions are 7.0.0 through 7.0.4, 1.5.0 through 1.5.6, 1.4.0 through 1.4.9, and 1.3.0 through 1.3.10.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An authentication bypass vulnerability in Spring Authorization Server caused by insufficient validation of client metadata in Dynamic Client Registration endpoints.
An authorization server vulnerability mentioned only as another vulnerability fixed in the same coordinated Spring release.
An Authorization Server Dynamic Client Registration insufficient validation vulnerability in Spring Security 7.0.x, fixed in version 7.0.5.
A vulnerability in Spring Security Authorization Server where Dynamic Client Registration endpoints perform insufficient validation of client metadata.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.