CVE-2026-59316

Spring Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XSS)

State: Published
Severity: 8.2 High
Published: Aug 27, 2026
Updated: Aug 28, 2026
Reserved: Jul 4, 2026

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

Scores

CVSS	Score	Vector	Source
3.1	8.2 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N	vmware

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
Spring Authorization ServerSpring	1.5.0 through 1.5.8Affected 1.4.0 through 1.4.11Affected

References

https://spring.io/security/cve-2026-59316

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