{"action":"Upgrade ws to 5.2.3 or later.","affected":[{"fixed":"7.4.6","introduced":"7.0.0"},{"fixed":"6.2.2","introduced":"6.0.0"},{"fixed":"5.2.3","introduced":"5.0.0"}],"component":"ws","cve_ids":["CVE-2021-32640"],"ecosystem":"npm","epss":0.02821,"exploited":false,"fixed_versions":["7.4.6","6.2.2","5.2.3"],"ghsa_id":"GHSA-6fc8-4gx4-v693","id":"tcs_01M5KF6SZFX8FPY3PMYXVT500V","modified_at":"2026-07-08T06:28:00.103808643Z","published_at":"2021-05-28T19:19:03Z","references":["https://osv.dev/vulnerability/GHSA-6fc8-4gx4-v693","https://github.com/websockets/ws/security/advisories/GHSA-6fc8-4gx4-v693","https://nvd.nist.gov/vuln/detail/CVE-2021-32640","https://github.com/websockets/ws/issues/1895","https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff","https://github.com/websockets/ws","https://lists.apache.org/thread.html/rdfa7b6253c4d6271e31566ecd5f30b7ce1b8fb2c89d52b8c4e0f4e30@%3Ccommits.tinkerpop.apache.org%3E","https://security.netapp.com/advisory/ntap-20210706-0005"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-6fc8-4gx4-v693","url":"https://osv.dev/vulnerability/GHSA-6fc8-4gx4-v693"}],"summary":"ReDoS in Sec-Websocket-Protocol header"}