{"cve":"CVE-2022-23514","nvd":{"published":"2022-12-14T14:15:10.477","modified":"2026-06-17T04:30:16.610","status":"Modified","description":"Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah < 2.19.1 contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue is patched in version 2.19.1.","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":["CWE-1333"],"references":["https://github.com/flavorjones/loofah/security/advisories/GHSA-486f-hjj9-9vhh","https://hackerone.com/reports/1684163","https://lists.debian.org/debian-lts-announce/2023/09/msg00011.html","https://github.com/flavorjones/loofah/security/advisories/GHSA-486f-hjj9-9vhh","https://hackerone.com/reports/1684163"],"products":["loofah_project:loofah"],"source":"nvd","synced_at":"2026-10-19T21:37:28.463369388+00:00"},"epss":{"cve":"CVE-2022-23514","score":0.01829,"percentile":0.78858,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-486f-hjj9-9vhh","url":"https://osv.dev/vulnerability/GHSA-486f-hjj9-9vhh","summary":"Inefficient Regular Expression Complexity in Loofah","modified":"2025-11-04T17:02:26.327464Z","packages":[{"ecosystem":"RubyGems","name":"loofah","purl":"pkg:gem/loofah","ranges":["<2.19.1"],"fixed":["2.19.1"]}]}],"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."]}