Is CVE-2026-59316 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-59316?

CVE-2026-59316 has a CVSS v3 severity of HIGH (8.2).

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CVE-2026-59316

Description

Spring Authorization Server's default consent page renders user-controlled values without HTML entity encoding. When using the DefaultConsentPage, an attacker can craft an OAuth2 authorization request containing a malicious value that is stored server-side and later rendered unencoded in the default consent page presented to the end user. Spring Authorization Server 1.5.0 - 1.5.8 Spring Authorization Server 1.4.0 - 1.4.11