Bug 2525251 (CVE-2026-59281)

Summary: CVE-2026-59281 org.springframework/spring-webmvc: org.springframework/spring-webflux: Spring Framework: Cross-site Scripting in MVC and WebFlux applications
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aschwart, aszczucz, boliveir, drichtar, gmalinko, gtanzill, janstey, jbuscemi, mposolda, pdelbell, pjindal, rhel-process-autobot, rmartinc, rstepani, sdawley, ssilvert, sthorger, vmuzikar, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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A flaw was found in Spring MVC and WebFlux applications. When these applications are configured to obtain a data-binding Errors instance with HTML escaping enabled and then render field errors using the no-argument Errors.getFieldErrors() or Errors.getFieldError() accessors, they become vulnerable. This vulnerability allows for arbitrary HTML or JavaScript code injection, potentially leading to a reflected cross-site scripting (XSS) attack where an attacker could execute malicious scripts in a user's web browser.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-27 20:19:58 UTC 
Spring MVC and WebFlux applications that obtain a data-binding Errors instance with HTML escaping enabled and then render field errors using the no-argument Errors.getFieldErrors() or Errors.getFieldError() accessors are vulnerable to arbitrary HTML/JavaScript code injection, potentially resulting in a reflected cross-site scripting (XSS) vulnerability.
Spring Framework 7.0.0 - 7.0.8
Spring Framework 6.2.0 - 6.2.19
Spring Framework 6.1.0 - 6.1.28
Spring Framework 6.0.0 - 6.0.30
Spring Framework 5.3.0 - 5.3.49
Spring Framework 5.2.25.RELEASE and earlier