{"cve":"CVE-2022-39280","nvd":{"published":"2022-10-06T18:16:18.007","modified":"2026-06-17T04:58:03.680","status":"Modified","description":"dparse is a parser for Python dependency files. dparse in versions before 0.5.2 contain a regular expression that is vulnerable to a Regular Expression Denial of Service. All the users parsing index server URLs with dparse are impacted by this vulnerability. A patch has been applied in version `0.5.2`, all the users are advised to upgrade to `0.5.2` as soon as possible. Users unable to upgrade should avoid passing index server URLs in the source file to be parsed.","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","CWE-400"],"references":["https://github.com/pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5","https://github.com/pyupio/dparse/commit/d87364f9db9ab916451b1b036cfeb039e726e614","https://github.com/pyupio/dparse/security/advisories/GHSA-8fg9-p83m-x5pq","https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS","https://github.com/pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5"],"products":["pyup:dependency_parser"],"source":"nvd","synced_at":"2026-10-19T21:36:05.460296998+00:00"},"epss":{"cve":"CVE-2022-39280","score":0.01337,"percentile":0.71232,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8fg9-p83m-x5pq","url":"https://osv.dev/vulnerability/GHSA-8fg9-p83m-x5pq","summary":"ReDoS issue in dparse","modified":"2024-11-20T05:25:43.051059Z","packages":[{"ecosystem":"PyPI","name":"dparse","purl":"pkg:pypi/dparse","ranges":["<0.5.2"],"fixed":["0.5.2"]}]},{"id":"PYSEC-2022-301","url":"https://osv.dev/vulnerability/PYSEC-2022-301","summary":"","modified":"2023-11-08T04:10:17.529680Z","packages":[{"ecosystem":"PyPI","name":"dparse","purl":"pkg:pypi/dparse","ranges":["<0.5.2"],"fixed":["0.5.2"]}]}],"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."]}