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Vulnerability record · CVE-2026-59316 · published 27 August 2026

CVE-2026-59316: Broadcom spring authorization server cross-site scripting vulnerability

Broadcom · Spring Authorization Server

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

8.2 CVSS 3.1 High EPSS 0.32% · top 77.7% CWE-79 · Cross-site scripting
8.2CVSS 3.1 base score
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
31 Aug 2026Last modified by NVD

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://spring.io/security/cve-2026-59316 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-59316), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.