Cross-site Scripting (XSS) Affecting opensearch-dashboards-3 package, versions <3.8.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.2% (10th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-OPENSEARCHDASHBOARDS3-18969738
  • published20 Aug 2026
  • disclosed6 Jul 2026

Introduced: 6 Jul 2026

CVE-2026-59710  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Chainguard opensearch-dashboards-3 to version 3.8.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream opensearch-dashboards-3 package and not the opensearch-dashboards-3 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

showdown contains a stored cross-site scripting vulnerability in the parseHeaders function of src/subParsers/makehtml/tables.js that fails to properly escape table header ID attributes. Attackers can inject arbitrary HTML and script-executing SVG elements through double-quote characters in markdown table headers, achieving stored XSS when untrusted markdown is rendered with the default github flavor configuration.

CVSS Base Scores

version 3.1