Go before 1.13.13 and 1.14.x before 1.14.5 has a data race in some net/http servers, as demonstrated by the httputil.ReverseProxy Handler, because it reads a request body and writes a response at the same time.
lists.opensuse.org/opensuse-security-announce/2020-07/msg00077.html
lists.opensuse.org/opensuse-security-announce/2020-07/msg00082.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00029.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00030.html
groups.google.com/forum/#%21topic/golang-announce/f2c5bqrGH_g
groups.google.com/forum/#%21topic/golang-announce/XZNfaiwgt2w
lists.debian.org/debian-lts-announce/2020/11/msg00037.html
lists.debian.org/debian-lts-announce/2020/11/msg00038.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OCR6LAKCVKL55KJQPPBBWVQGOP7RL2RW/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WIRVUHD7TJIT7JJ33FKHIVTHPYABYPHR/
security.netapp.com/advisory/ntap-20200731-0005/
www.cloudfoundry.org/blog/cve-2020-15586/
www.debian.org/security/2021/dsa-4848
www.oracle.com/security-alerts/cpuApr2021.html