CVE-2026-59316

EUVD-2026-67198
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
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 22.93%
Affected Products (NVD)
VendorProductVersion
broadcomspring_authorization_server
1.4.0 ≤
𝑥
< 1.4.12
broadcomspring_authorization_server
1.5.0 ≤
𝑥
< 1.5.9
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://spring.io/security/cve-2026-59316