What’s Vulnerable › Vulnerabilities
CVE-2026-59355: Spring Authorization Server: Open Redirect via request_uri parameter
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-27 · updated 2026-09-01
- Weakness: CWE-601
Description
In versions of Spring Authorization Server 1.5.0 through 1.5.7, the authorization endpoint performs insufficient validation of the request_uri parameter. An attacker can craft a request containing an invalid request_uri paired with an unvalidated redirect_uri, which can result in an open redirect to an attacker-controlled site.
Affected products
- Spring Authorization Server: from 1.5.0 before 1.5.7.1 — fixed in 1.5.7.1
How to fix
Upgrade to a fixed version: Spring Authorization Server 1.5.7.1. Check the vendor advisory for mitigations.
References
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