{"id":"CVE-2020-28500","aliases":["GHSA-29mw-wpgm-hmr9"],"url":"https://o3.security/vulnerability/CVE-2020-28500","summary":"Regular Expression Denial of Service (ReDoS) in lodash","details":"Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.","published":"2021-02-15T11:15:12.397Z","modified":"2026-07-08T05:56:04.213095667Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":{"score":0.07336,"percentile":0.94006,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":6,"affectedPackages":[{"ecosystem":"npm","name":"lodash","fixedVersion":"4.17.21"},{"ecosystem":"npm","name":"lodash-es","fixedVersion":"4.17.21"},{"ecosystem":"npm","name":"lodash.trimend","fixedVersion":null},{"ecosystem":"npm","name":"lodash.trim","fixedVersion":null},{"ecosystem":"RubyGems","name":"lodash-rails","fixedVersion":"4.17.21"}],"fix":{"url":"https://github.com/lodash/lodash/pull/5065","label":"lodash/lodash#5065"},"references":[{"type":"WEB","url":"https://github.com/lodash/lodash/blob/npm/trimEnd.js%23L8"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210312-0006/"},{"type":"ADVISORY","url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"type":"FIX","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf"},{"type":"FIX","url":"https://github.com/lodash/lodash/pull/5065"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpujul2022.html"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuoct2021.html"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JAVA-ORGFUJIONWEBJARS-1074896"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1074894"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1074892"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBLODASH-1074895"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1074893"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JS-LODASH-1018905"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:56:04.213095667Z"}}