{"cve":"CVE-2023-30798","nvd":{"published":"2023-04-21T16:15:07.510","modified":"2026-07-15T02:17:07.250","status":"Modified","description":"There MultipartParser usage in Encode's Starlette python framework before versions 0.25.0 allows an unauthenticated and remote attacker to specify any number of form fields or files which can cause excessive memory usage resulting in denial of service of the HTTP service.","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-400"],"references":["https://github.com/encode/starlette/commit/8c74c2c8dba7030154f8af18e016136bea1938fa","https://github.com/encode/starlette/security/advisories/GHSA-74m5-2c7w-9w3x","https://vulncheck.com/advisories/starlette-multipartparser-dos","https://github.com/encode/starlette/commit/8c74c2c8dba7030154f8af18e016136bea1938fa","https://github.com/encode/starlette/security/advisories/GHSA-74m5-2c7w-9w3x"],"products":["encode:starlette"],"source":"nvd","synced_at":"2026-10-19T21:38:05.473481323+00:00"},"epss":{"cve":"CVE-2023-30798","score":0.01299,"percentile":0.70423,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-74m5-2c7w-9w3x","url":"https://osv.dev/vulnerability/GHSA-74m5-2c7w-9w3x","summary":"MultipartParser denial of service with too many fields or files","modified":"2026-07-08T06:52:56.583902347Z","packages":[{"ecosystem":"PyPI","name":"starlette","purl":"pkg:pypi/starlette","ranges":["<0.25.0"],"fixed":["0.25.0"]}]},{"id":"PYSEC-2023-48","url":"https://osv.dev/vulnerability/PYSEC-2023-48","summary":"","modified":"2024-10-28T15:41:59.716521Z","packages":[{"ecosystem":"PyPI","name":"starlette","purl":"pkg:pypi/starlette","ranges":["<0.25.0"],"fixed":["0.25.0"]}]}],"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."]}