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Keycloak Vulnerable to Improper Validation of Specified Quantity in Input

🗓️ 27 May 2026 15:33:25Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 5 Views

Low-privilege user exploits oversized subject_token JWT; >4000 chars dropped, enabling service account access.

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01 Jul 2026 19:09Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.16.8 - 8.8
EPSS0.0032
SSVC
5