CVE-2026-56859 Affecting elastic-agent-9.2 package, versions <9.2.8-r16


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.57% (45th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-ELASTICAGENT92-18829604
  • published15 Aug 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-56859  (opens in a new tab)

How to fix?

Upgrade Chainguard elastic-agent-9.2 to version 9.2.8-r16 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream elastic-agent-9.2 package and not the elastic-agent-9.2 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion.

CVSS Base Scores

version 3.1