{"cve":"CVE-2020-7693","nvd":{"published":"2020-07-09T14:15:11.197","modified":"2026-06-17T03:25:16.630","status":"Modified","description":"Incorrect handling of Upgrade header with the value websocket leads in crashing of containers hosting sockjs apps. This affects the package sockjs before 0.3.20.","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:L","score":5.3},"cwes":["CWE-755"],"references":["https://github.com/andsnw/sockjs-dos-py","https://github.com/sockjs/sockjs-node/commit/dd7e642cd69ee74385825816d30642c43e051d16","https://github.com/sockjs/sockjs-node/issues/252","https://github.com/sockjs/sockjs-node/pull/265","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-575448"],"products":["sockjs_project:sockjs"],"source":"nvd","synced_at":"2026-10-19T21:06:22.076270124+00:00"},"epss":{"cve":"CVE-2020-7693","score":0.04978,"percentile":0.92207,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-c9g6-9335-x697","url":"https://osv.dev/vulnerability/GHSA-c9g6-9335-x697","summary":"Improper Input Validation in SocksJS-Node","modified":"2024-09-03T02:27:05.113268Z","packages":[{"ecosystem":"npm","name":"sockjs","purl":"pkg:npm/sockjs","ranges":["<0.3.20"],"fixed":["0.3.20"]}]}],"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."]}