Resource Exhaustion Affecting opensearch-dashboards-2 package, versions <2.19.6-r19


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.39% (32nd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-OPENSEARCHDASHBOARDS2-19757621
  • published13 Sept 2026
  • disclosed1 Sept 2026

Introduced: 1 Sep 2026

NewCVE-2026-84375  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-407  (opens in a new tab)

How to fix?

Upgrade Chainguard opensearch-dashboards-2 to version 2.19.6-r19 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.

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 until 3.15.2 and 4.3.2, maxTotalMergeKeys in lib/js-yaml/loader.js and lib/loader.js does not count empty mapping sources while processing the merge key <<. An attacker can alias a large sequence of empty mappings into many merge targets, causing O(N * K) processing while totalMergeKeys remains unchanged and the configured resource limit is never reached. A relatively small YAML document can therefore cause prolonged CPU consumption in applications that parse untrusted YAML, and merge processing is enabled by default on these release lines. This issue is fixed in versions 3.15.2 and 4.3.2.

CVSS Base Scores

version 3.1