Node.js had a bug in versions 8.X and 9.X which caused buffers to not be initialized when the encoding for the fill value did not match the encoding specified. For example, 'Buffer.alloc(0x100, "This is not correctly encoded", "hex");' The buffer implementation was updated such that the buffer will be initialized to all zeros in these cases.

Node.js was affected by OpenSSL vulnerability CVE-2017-3737 in regards to the use of SSL_read() due to TLS handshake failure. The result was that an active network attacker could send application data to Node.js using the TLS or HTTP2 modules in a way that bypassed TLS authentication and encryption.

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH1024 are considered just feasible, because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be significant. However, for an attack on TLS to be meaningful, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701. This only affects processors that support the AVX2 but not ADX extensions like Intel Haswell (4th generation). Note: The impact from this issue is similar to CVE-2017-3736, CVE-2017-3732 and CVE-2015-3193. OpenSSL version 1.0.2-1.0.2m and 1.1.0-1.1.0g are affected. Fixed in OpenSSL 1.0.2n. Due to the …

nodejs ejs version older than 2.5.5 is vulnerable to a denial-of-service due to weak input validation in the ejs.renderFile()

nodejs ejs versions older than 2.5.3 is vulnerable to remote code execution due to weak input validation in ejs.renderFile() function

nodejs ejs version older than 2.5.5 is vulnerable to a Cross-site-scripting in the ejs.renderFile() resulting in code injection

KeystoneJS before 4.0.0-beta.7 allows application-wide CSRF bypass by removing the CSRF parameter and value, aka SecureLayer7 issue number SL7_KEYJS_03. In other words, it fails to reject requests that lack an x-csrf-token header.

Node.js before 4.8.5, 6.x before 6.11.5, and 8.x before 8.8.0 allows remote attackers to cause a denial of service (uncaught exception and crash) by leveraging a change in the zlib module 1.2.9 making 8 an invalid value for the windowBits parameter.

Cross-Site Scripting vulnerability in KeystoneJS before 4.0.0-beta.7 allows remote authenticated administrators to inject arbitrary web script or HTML via the "content brief" or "content extended" field, a different vulnerability than CVE-2017-15878.

CSV Injection (aka Excel Macro Injection or Formula Injection) exists in admin/server/api/download.js and lib/list/getCSVData.js in KeystoneJS before 4.0.0-beta.7 via a value that is mishandled in a CSV export.