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Medium severity4.8NVD Advisory· Published Apr 24, 2026· Updated Apr 27, 2026

CVE-2026-42041

CVE-2026-42041

Description

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, the Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution to silently suppress all HTTP error responses (401, 403, 500, etc.), causing them to be treated as successful responses. This completely bypasses application-level authentication and error handling. The root cause is that validateStatus is the only config property using the mergeDirectKeys merge strategy, which uses JavaScript's in operator — an operator that inherently traverses the prototype chain. When Object.prototype.validateStatus is polluted with () => true, all HTTP status codes are accepted as success. This vulnerability is fixed in 1.15.1 and 0.31.1.

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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
axiosnpm
< 0.31.10.31.1

Affected products

51

Patches

Vulnerability mechanics

References

3

News mentions

0

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