{"cve":"CVE-2018-16843","nvd":{"published":"2018-11-07T14:29:00.777","modified":"2026-06-17T01:44:53.387","status":"Modified","description":"nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive memory consumption. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html","http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html","http://seclists.org/fulldisclosure/2021/Sep/36","http://www.securityfocus.com/bid/105868","http://www.securitytracker.com/id/1042038"],"products":["apple:xcode","canonical:ubuntu_linux","debian:debian_linux","f5:nginx","opensuse:leap"],"source":"nvd","synced_at":"2026-10-19T20:53:59.789560037+00:00"},"epss":{"cve":"CVE-2018-16843","score":0.47985,"percentile":0.98855,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}