{"id":"GHSA-pvrw-g6fx-mcx2","summary":"is_js vulnerable to Regular Expression Denial of Service","details":"is.js is a general-purpose check library. Versions 0.9.0 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). is.js uses a regex copy-pasted from a gist to validate URLs. Trying to validate a malicious string can cause the regex to loop \"forever.\" This vulnerability was found using a CodeQL query which identifies inefficient regular expressions. is.js has no patch for this issue.","aliases":["CVE-2020-26302"],"modified":"2023-11-08T04:03:18.759304Z","published":"2023-07-06T19:24:05Z","database_specific":{"cwe_ids":["CWE-1333","CWE-400"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2023-07-06T21:46:34Z","nvd_published_at":"2022-12-22T21:15:00Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26302"},{"type":"WEB","url":"https://github.com/arasatasaygin/is.js/issues/320"},{"type":"PACKAGE","url":"https://github.com/arasatasaygin/is.js"},{"type":"ADVISORY","url":"https://securitylab.github.com/advisories/GHSL-2020-295-redos-is.js"}],"affected":[{"package":{"name":"is_js","ecosystem":"npm","purl":"pkg:npm/is_js"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"0.9.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-pvrw-g6fx-mcx2/GHSA-pvrw-g6fx-mcx2.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}