{"action":"Upgrade highlight.js to 9.18.2 or later.","affected":[{"fixed":"9.18.2","introduced":"0"},{"fixed":"10.1.2","introduced":"10.0.0"}],"component":"highlight.js","cve_ids":["CVE-2020-26237"],"ecosystem":"npm","epss":0.01329,"exploited":false,"fixed_versions":["9.18.2","10.1.2"],"ghsa_id":"GHSA-vfrc-7r7c-w9mx","id":"tcs_01M5KGBR0HQNT5KVCCPQ7VZQ87","modified_at":"2026-07-08T06:00:20.318194940Z","published_at":"2020-11-24T22:58:41Z","references":["https://osv.dev/vulnerability/GHSA-vfrc-7r7c-w9mx","https://github.com/highlightjs/highlight.js/security/advisories/GHSA-vfrc-7r7c-w9mx","https://nvd.nist.gov/vuln/detail/CVE-2020-26237","https://github.com/highlightjs/highlight.js/pull/2636","https://github.com/highlightjs/highlight.js/commit/7241013ae011a585983e176ddc0489a7a52f6bb0","https://github.com/highlightjs/highlight.js","https://lists.debian.org/debian-lts-announce/2020/12/msg00041.html","https://www.npmjs.com/package/highlight.js","https://www.oracle.com/security-alerts/cpujul2022.html"],"severity":{"label":"medium","score":5.8},"sources":[{"source":"osv","source_id":"GHSA-vfrc-7r7c-w9mx","url":"https://osv.dev/vulnerability/GHSA-vfrc-7r7c-w9mx"}],"summary":"Prototype Pollution in highlight.js"}