{"cve":"CVE-2021-23341","nvd":{"published":"2021-02-18T16:15:14.143","modified":"2026-06-17T03:38:35.283","status":"Modified","description":"The package prismjs before 1.23.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the prism-asciidoc, prism-rest, prism-tap and prism-eiffel components.","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":[],"references":["https://github.com/PrismJS/prism/commit/c2f6a64426f44497a675cb32dccb079b3eff1609","https://github.com/PrismJS/prism/issues/2583","https://github.com/PrismJS/prism/pull/2584","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1076583","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076582"],"products":["prismjs:prism"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-23341","score":0.03167,"percentile":0.8801,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-h4hr-7fg3-h35w","url":"https://osv.dev/vulnerability/GHSA-h4hr-7fg3-h35w","summary":"Denial of service in prismjs","modified":"2025-01-14T08:57:33.682509Z","packages":[{"ecosystem":"npm","name":"prismjs","purl":"pkg:npm/prismjs","ranges":["<1.23.0"],"fixed":["1.23.0"]}]}],"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."]}