CVE-2018-12121

Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Denial of Service with large HTTP headers: By using a combination of many requests with maximum sized headers (almost 80 KB per connection), and carefully timed completion of the headers, it is possible to cause the HTTP server to abort from heap allocation failure. Attack potential is mitigated by the use of a load balancer or other proxy layer.

• CWE-400
• CWE-400

• http://www.securityfocus.com/bid/106043Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2019:1821Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:2258Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:3497Third Party Advisory
• https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/Patch, Vendor Advisory
• https://security.gentoo.org/glsa/202003-48Third Party Advisory
• http://www.securityfocus.com/bid/106043Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2019:1821Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:2258Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:3497Third Party Advisory
• https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/Patch, Vendor Advisory
• https://security.gentoo.org/glsa/202003-48Third Party Advisory
• https://security.netapp.com/advisory/ntap-20241227-0008/

Published

Nov 28, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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