EUVD-2026-35332
GHSA-h3qp-gqrc-q736
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
3Blast Radius
ecosystem impact- 6 maven packages depend on org.springframework:spring-webflux (5 direct, 1 indirect)
- 21 maven packages depend on org.springframework:spring-webmvc (13 direct, 8 indirect)
Ecosystem-wide dependent count for version 7.0.0 and other introduced versions.
DescriptionNVD
A Spring MVC or Spring WebFlux application which configures a mapping for "/**" where the view name is not explicitly specified allows an attacker to craft a link resulting in a 302 redirect to an arbitrary external host via the redirect: prefix.
Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
AnalysisAI
Open redirect in Spring Framework (Spring MVC and Spring WebFlux) across four major version branches enables unauthenticated remote attackers to craft URLs that cause the application to issue a 302 HTTP redirect to an arbitrary attacker-controlled external host. The vulnerability is conditionally exploitable - requiring a catch-all wildcard route mapping without an explicit view name - and demands user interaction to trigger. CVSS rates this 4.2 Medium (AV:N/AC:H/PR:N/UI:R); no public exploit code or CISA KEV listing has been identified at time of analysis.
Technical ContextAI
Spring MVC and Spring WebFlux are the primary web request-handling modules of the Spring Framework, a widely deployed Java application framework maintained by VMware (Broadcom). A core Spring view resolution feature recognizes the 'redirect:' prefix in view names and translates it into an HTTP 302 redirect response. When a controller is mapped to '/**' without specifying an explicit view name, the framework may derive the view name from attacker-controlled request data, allowing the 'redirect:' prefix to be injected and resolved. CWE-601 (URL Redirection to Untrusted Site / Open Redirect) describes this root cause class: insufficient validation of attacker-supplied input used to construct redirect URLs. The affected CPE is cpe:2.3:a:spring:spring_framework across all platforms, spanning versions 5.3.0-5.3.48, 6.1.0-6.1.27, 6.2.0-6.2.18, and 7.0.0-7.0.7.
RemediationAI
Upgrade Spring Framework to a version beyond the affected ranges per the vendor advisory at https://spring.io/security/cve-2026-41844 - consult that page directly for confirmed fixed release versions, as exact patch version numbers were not included in the provided input data and should not be assumed. As an immediate workaround with no patch dependency, replace any catch-all '/**' route mappings with specific path patterns and explicitly specify view names in every controller handler method, which eliminates the code path that allows user-controlled input to influence view name resolution. This workaround is low-risk but requires regression testing to ensure routing correctness across the application. Additionally, deploying a WAF rule to detect or block 'redirect:' patterns within URL paths can provide a secondary compensating control, though this may produce false positives in applications that legitimately use that string in URL segments.
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