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Medium severity5.3NVD Advisory· Published Apr 24, 2026· Updated Apr 27, 2026

CVE-2026-42037

CVE-2026-42037

Description

Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.15.1, the FormDataPart constructor in lib/helpers/formDataToStream.js interpolates value.type directly into the Content-Type header of each multipart part without sanitizing CRLF (\r\n) sequences. An attacker who controls the .type property of a Blob/File-like object (e.g., via a user-uploaded file in a Node.js proxy service) can inject arbitrary MIME part headers into the multipart form-data body. This bypasses Node.js v18+ built-in header protections because the injection targets the multipart body structure, not HTTP request headers. This vulnerability is fixed in 1.15.1.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
axiosnpm
>= 1.0.0, < 1.15.11.15.1

Affected products

50

Patches

Vulnerability mechanics

References

3

News mentions

0

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