Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Affecting rancher-api-ui package, versions <1.2.3-r6


Severity

Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

Social Trends
EPSS
0.98% (58th 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-WOLFILATEST-RANCHERAPIUI-15703355
  • published20 Mar 2026
  • disclosed6 Mar 2026

Introduced: 6 Mar 2026

CVE-2026-29063  (opens in a new tab)
CWE-1321  (opens in a new tab)

How to fix?

Upgrade Wolfi rancher-api-ui to version 1.2.3-r6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rancher-api-ui package and not the rancher-api-ui package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs. This issue has been patched in versions 3.8.3, 4.3.7, and 5.1.5.

References

CVSS Base Scores

version 3.1