Node v5.1.1 (Stable)，该版本是重要安全更新发布，主要更新内容如下：
http: Fix a bug where an HTTP socket may no longer have an associated parser but a pipelined request triggers a pause or resume, a potential denial-of-service vector. (Fedor Indutny)
openssl: Upgrade to 1.0.2e, containing fixes for:
CVE-2015-3193 "BN_mod_exp may produce incorrect results on x86_64", an attack may be feasible against a Node.js TLS server using DHE key exchange. Details are available at http://openssl.org/news/secadv/20151203.txt.
CVE-2015-3194 "Certificate verify crash with missing PSS parameter", a potential denial-of-service vector for Node.js TLS servers using client authentication; TLS clients are also impacted. Details are available at http://openssl.org/news/secadv/20151203.txt. (Shigeki Ohtsu) #4134
v8: Backport fixes for a bug in
JSON.stringify()that can result in out-of-bounds reads for arrays. (Ben Noordhuis)
详情请看：Node v5.1.1 (Stable)