multiparty vulnerable to Denial of Service via Uncaught Exception in filename* parameter parsing

CAO 7.5CVE-2026-8162 · GHSA-xh3c-6gcq-g4rv · Công bố 12/05/2026 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2026-8162 là lỗ hổng mức CAO (CVSS 7.5) ảnh hưởng multiparty (pillarjs), multiparty.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.33%, cao hơn 25.7% các lỗ hổng khác.
Cách xử lý: cập nhật lên 4.3.0 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
multiparty pillarjs	`< 4.3.0`	`4.3.0`
multiparty npm	`< 4.3.0`	`4.3.0`

Mô tả

Impact

[email protected] and lower versions are vulnerable to denial of service via uncaught exception. By sending a multipart/form-data request with a Content-Disposition: filename*=utf-8'' header containing a malformed percent-encoding (e.g., %FF, %GG), the parser invokes decodeURI on the value without try/catch. The resulting URIError propagates as an uncaught exception and crashes the process. Any service accepting multipart uploads via multiparty is affected.

Patches

Users should upgrade to [email protected] or higher.

Workarounds

None.

Mô tả của NVD

[email protected] 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 [email protected] or higher.