Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Affecting commercial-gitlab-rails-ee-fips-19.3 package, versions <19.3.3-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.36% (28th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CHAINGUARDLATEST-COMMERCIALGITLABRAILSEEFIPS193-20651222
  • published8 Oct 2026
  • disclosed5 Oct 2026

Introduced: 5 Oct 2026

NewCVE-2026-104852  (opens in a new tab)
CWE-1321  (opens in a new tab)

How to fix?

Upgrade Chainguard commercial-gitlab-rails-ee-fips-19.3 to version 19.3.3-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream commercial-gitlab-rails-ee-fips-19.3 package and not the commercial-gitlab-rails-ee-fips-19.3 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 12.0.1, the GraphQL Tools utils package's mergeDeep function follows inherited properties while recursively merging source objects and does not exclude proto, constructor, or prototype keys. An unauthenticated GraphQL client can alias fields to those names so responses from two subgraphs collide during ordinary supergraph result merging, causing mergeDeep to traverse Object and Function prototypes and overwrite Function.prototype.call with a subgraph-supplied value. This breaks subsequent requests in the process until restart. This issue is fixed in version 12.0.1.

CVSS Base Scores

version 3.1