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multiparty

4 known vulnerabilities.

multiparty at a glance

Last 12 months
4
Critical · all time
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Products

4 results · Feed

  • High 7.5

    multiparty vulnerable to Denial of Service via unbounded part-header accumulation

    multiparty is a Node.js library for parsing multipart/form-data request bodies. In versions from 2.1.0 up to but not including 4.3.1, the parser does not bound the amount of memory used while accumulating the headers of a single multipart part. An unauthentic…

  • High 7.5

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

    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 deco…

  • High 7.5
    CVE-2026-8161 Public exploit

    multiparty vulnerable to Denial of Service via Prototype Pollution leading to Uncaught Exception

    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 field name that collides with an inherited Object.prototype property such as __proto__, constructor, or toString, t…

  • High 7.5

    multiparty vulnerable to ReDoS via filename parsing

    multiparty@4.2.3 and lower versions are vulnerable to denial of service via regular expression backtracking in the Content-Disposition filename parameter parser. A crafted multipart upload with a long header value can cause regex matching to take seconds, blo…