Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Affecting node-axios package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.35% (27th percentile)

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  • Snyk IDSNYK-ECHOLATEST-NODEAXIOS-20257503
  • published29 Sept 2026
  • disclosed28 Sept 2026

Introduced: 28 Sep 2026

NewCVE-2026-101909  (opens in a new tab)
CWE-1321  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest node-axios.

NVD Description

Note: Versions mentioned in the description apply only to the upstream node-axios package and not the node-axios package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Axios is a promise-based HTTP client for the browser and Node.js. From 0.28.0 until 0.34.0 and 1.15.1 until 1.20.0, ToFormData processes inherited serialization options and visitor properties supplied through prototype pollution. A separate same-process prototype-pollution flaw supplies inherited dots, indexes, metaTokens, maxDepth, visitor, or Blob values before object serialization. The inherited options alter toFormData field naming and data interpretation, maxDepth can force request failure, Blob changes value handling, and a polluted visitor can execute when an attacker already has the stronger ability to inject a function. Serialized field naming and data interpretation can change, maxDepth can cause request failure, Blob can alter value handling, and a polluted visitor can execute under the stronger function-injection primitive. This issue is fixed in versions 0.34.0 and 1.20.0.

CVSS Base Scores

version 3.1