{"action":"Upgrade webpack-dev-server to 5.2.4 or later.","affected":[{"fixed":"5.2.4","introduced":"0"}],"component":"webpack-dev-server","cve_ids":["CVE-2026-6402"],"ecosystem":"npm","epss":0.00291,"exploited":false,"fixed_versions":["5.2.4"],"ghsa_id":"GHSA-79cf-xcqc-c78w","id":"tcs_01M5KF9F6JFJYJB30XCC9G2HXF","modified_at":"2026-09-10T03:50:46.202661971Z","published_at":"2026-05-18T13:31:42Z","references":["https://osv.dev/vulnerability/GHSA-79cf-xcqc-c78w","https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-4v9v-hfq4-rm2v","https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-79cf-xcqc-c78w","https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-9jgg-88mc-972h","https://nvd.nist.gov/vuln/detail/CVE-2026-6402","https://cna.openjsf.org/security-advisories.html","https://github.com/webpack/webpack-dev-server"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-79cf-xcqc-c78w","url":"https://osv.dev/vulnerability/GHSA-79cf-xcqc-c78w"}],"summary":"webpack-dev-server vulnerable to cross-origin source code exposure on non-HTTPS origins"}