Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Affecting opensearch-dashboards-2 package, versions <2.19.6-r21


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.41% (34th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-OPENSEARCHDASHBOARDS2-20391291
  • published2 Oct 2026
  • disclosed28 Sept 2026

Introduced: 28 Sep 2026

NewCVE-2026-101908  (opens in a new tab)
CWE-1321  (opens in a new tab)

How to fix?

Upgrade Chainguard opensearch-dashboards-2 to version 2.19.6-r21 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream opensearch-dashboards-2 package and not the opensearch-dashboards-2 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Axios is a promise-based HTTP client for the browser and Node.js. From 1.7.0 until 1.20.0, the fetch adapter constructs a Request with sanitized resolvedOptions but then calls fetch with the original fetchOptions. A separate same-process prototype-pollution flaw populates Object.prototype.headers so fetchOptions.headers resolves through inheritance. The inherited fetchOptions.headers value overrides the sanitized Request headers through the second argument to fetch after Request construction. Attacker-controlled request headers can alter authorization, caching, metadata-service access, or application-specific behavior. This issue is fixed in version 1.20.0.

CVSS Base Scores

version 3.1