Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang. The following packages have been upgraded to a later upstream version: golang . Security Fix: * golang: net: lookup functions may return invalid host names * golang: net/http/httputil: ReverseProxy forwards connection headers if first one is empty * golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents * golang: net/http/httputil: panic due to racy read of persistConn after handler panic For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.