HTTP Status 500 – Internal Server Error

Type Exception Report

Message The request was rejected because the URL contained a potentially malicious String "//"

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.security.web.firewall.RequestRejectedException: The request was rejected because the URL contained a potentially malicious String "//"
	org.springframework.security.web.firewall.StrictHttpFirewall.rejectedBlacklistedUrls(StrictHttpFirewall.java:369)
	org.springframework.security.web.firewall.StrictHttpFirewall.getFirewalledRequest(StrictHttpFirewall.java:336)
	org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:194)
	org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
	org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
	org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
	org.apache.catalina.filters.ExpiresFilter.doFilter(ExpiresFilter.java:1227)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

Note The full stack trace of the root cause is available in the server logs.

Apache Tomcat/9.0.31 (Ubuntu)