Spring Authorization Server <=7.0.5 Open Redirect via request_uri
CVE-2026-41008 Published on June 9, 2026
Spring Security Authorization Server Open Redirect via request_uri
Spring Security Authorization Server's authorization endpoint performs insufficient validation of the request_uri parameter. An attacker can craft a malicious authorization request containing an invalid request_uri and an arbitrary, unvalidated redirect_uri, which can lead to an Open Redirect vulnerability.
Affected versions:
Spring Security 7.0.0 through 7.0.5.
Spring Authorization Server 1.5.0 through 1.5.7.
Vulnerability Analysis
CVE-2026-41008 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an Open Redirect Vulnerability?
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. An http parameter may contain a URL value and could cause the web application to redirect the request to the specified URL. By modifying the URL value to a malicious site, an attacker may successfully launch a phishing scam and steal user credentials. Because the server name in the modified link is identical to the original site, phishing attempts have a more trustworthy appearance.
CVE-2026-41008 has been classified to as an Open Redirect vulnerability or weakness.
Products Associated with CVE-2026-41008
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Affected Versions
Spring Security:- Version 7.0.0 and below 7.0.6 is affected.
- Version 1.5.0 and below 1.5.8 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.