{"cve":"CVE-2026-8162","nvd":{"published":"2026-05-12T10:16:49.110","modified":"2026-06-17T11:03:34.493","status":"Analyzed","description":"multiparty@4.2.3 and lower versions are vulnerable to denial of service via uncaught exception. By sending a multipart/form-data request with a Content-Disposition header whose filename* parameter contains a malformed percent-encoding, the parser invokes decodeURI on the value without try/catch. The resulting URIError propagates as an uncaught exception and crashes the process. Impact: any service accepting multipart uploads via multiparty is affected. Workarounds: none. Upgrade to multiparty@4.3.0 or higher.","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-755"],"references":["https://cna.openjsf.org/security-advisories.html","https://github.com/pillarjs/multiparty/security/advisories/GHSA-xh3c-6gcq-g4rv"],"products":["pillarjs:multiparty"],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-8162","score":0.00325,"percentile":0.25627,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-xh3c-6gcq-g4rv","url":"https://osv.dev/vulnerability/GHSA-xh3c-6gcq-g4rv","summary":"multiparty vulnerable to Denial of Service via Uncaught Exception in filename* parameter parsing","modified":"2026-05-18T17:56:25.741135Z","packages":[{"ecosystem":"npm","name":"multiparty","purl":"pkg:npm/multiparty","ranges":["<4.3.0"],"fixed":["4.3.0"]}]}],"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."]}