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Low severity3.7NVD Advisory· Published Aug 1, 2026· Updated Sep 1, 2026

CVE-2026-67319

CVE-2026-67319

Description

axios before 0.33.0 (and 1.x before 1.18.0) can consume inherited properties from nested request option objects when the JavaScript process's Object.prototype has already been polluted by another component. While the top-level merged config uses a null prototype, nested plain objects such as auth and paramsSerializer are cloned into ordinary objects and read without own-property checks. When an application passes placeholder nested objects such as auth: {} or paramsSerializer: {}, inherited username/password values can cause silent injection of an Authorization: Basic header, and inherited encode/serialize values can alter query-string serialization (full serializer replacement requires a function-valued pollution primitive). This is exploitable only in the presence of pre-existing prototype pollution.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
axiosnpm
>= 0.8.0, < 0.33.00.33.0
axiosnpm
>= 1.0.0, < 1.18.01.18.0

Affected products

60

Patches

Vulnerability mechanics

References

11

News mentions

0

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