{"cve":"CVE-2021-23368","nvd":{"published":"2021-04-12T14:15:14.257","modified":"2026-06-17T03:38:37.997","status":"Modified","description":"The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.","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":[],"references":["https://github.com/postcss/postcss/commit/8682b1e4e328432ba692bed52326e84439cec9e4","https://github.com/postcss/postcss/commit/b6f3e4d5a8d7504d553267f80384373af3a3dec5","https://lists.apache.org/thread.html/r00158f5d770d75d0655c5eef1bdbc6150531606c8f8bcb778f0627be%40%3Cdev.myfaces.apache.org%3E","https://lists.apache.org/thread.html/r16e295b4f02d81b79981237d602cb0b9e59709bafaa73ac98be7cef1%40%3Cdev.myfaces.apache.org%3E","https://lists.apache.org/thread.html/r49afb49b38748897211b1f89c3a64dc27f9049474322b05715695aab%40%3Cdev.myfaces.apache.org%3E"],"products":["postcss:postcss"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-23368","score":0.03511,"percentile":0.89204,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hwj9-h5mp-3pm3","url":"https://osv.dev/vulnerability/GHSA-hwj9-h5mp-3pm3","summary":"Regular Expression Denial of Service in postcss","modified":"2025-01-14T08:57:30.487716Z","packages":[{"ecosystem":"npm","name":"postcss","purl":"pkg:npm/postcss","ranges":[">=7.0.0 <7.0.36"],"fixed":["7.0.36"]},{"ecosystem":"npm","name":"postcss","purl":"pkg:npm/postcss","ranges":[">=8.0.0 <8.2.10"],"fixed":["8.2.10"]}]}],"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."]}