{"cve":"CVE-2023-52426","nvd":{"published":"2024-02-04T20:15:46.120","modified":"2026-10-15T01:17:13.283","status":"Modified","description":"libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-776"],"references":["https://cwe.mitre.org/data/definitions/776.html","https://github.com/libexpat/libexpat/commit/0f075ec8ecb5e43f8fdca5182f8cca4703da0404","https://github.com/libexpat/libexpat/pull/777","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/"],"products":["libexpat_project:libexpat"],"source":"nvd","synced_at":"2026-10-19T21:44:57.175229480+00:00"},"epss":{"cve":"CVE-2023-52426","score":0.00391,"percentile":0.32929,"date":"2026-10-25"},"kev":null,"osv":[],"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."]}