Vulnerability-Lookup

GHSA-FGMJ-FM8M-JVVX

Vulnerability from github – Published: 2026-05-26 13:30 – Updated: 2026-06-30 16:55

Summary

Apache ECharts has a cross-site scripting (XSS) vulnerability

Details

A cross-site scripting (XSS) vulnerability exists in Apache ECharts in the Lines series tooltip rendering logic.

This issue affects Apache ECharts: from before 6.1.0.

In versions prior to 6.1.0, if both Lines series and tooltip are used, and no user-specified tooltip.formatter is provided, and series.data[i].name is specified, raw HTML string series.data[i].name can be rendered through innerHTML sink into tooltip content. Although tooltip is allowed to accept user-provided raw HTML via a custom tooltip.formatter, the built-in tooltip formatters conventionally perform HTML escaping automatically. This case breaks that convention and may unexpectedly lead to script execution when tooltips are displayed.

Users are recommended to upgrade to version 6.1.0 if using the Lines series in this way, which fixes the issue.

Severity

6.1 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "echarts"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-45249"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-30T16:55:25Z",
    "nvd_published_at": "2026-05-25T08:16:24Z",
    "severity": "MODERATE"
  },
  "details": "A cross-site scripting (XSS) vulnerability exists in Apache ECharts in the Lines series tooltip rendering logic.\n\nThis issue affects Apache ECharts: from before 6.1.0.\n\nIn versions prior to 6.1.0, if both Lines series\u00a0and tooltip are used, and no user-specified tooltip.formatter is provided, and series.data[i].name is specified, raw HTML string series.data[i].name can be\u00a0rendered through innerHTML sink into tooltip content. Although tooltip is allowed to accept user-provided raw HTML via a custom tooltip.formatter, the built-in tooltip formatters conventionally perform HTML escaping automatically. This case breaks that convention and\u00a0may unexpectedly lead to script execution when tooltips are displayed.\n\n\nUsers are recommended to upgrade to version 6.1.0 if using the Lines series in this way, which fixes the issue.",
  "id": "GHSA-fgmj-fm8m-jvvx",
  "modified": "2026-06-30T16:55:25Z",
  "published": "2026-05-26T13:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45249"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/echarts/pull/21608"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/echarts/commit/1e39b00eedda0e4a0b048e099c0e13ce7149d90f"
    },
    {
      "type": "WEB",
      "url": "https://echarts.apache.org/en/option.html#series-lines"
    },
    {
      "type": "WEB",
      "url": "https://echarts.apache.org/handbook/en/best-practices/security/#passing_raw_html_safely"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/echarts"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/1g6xk7gd9vg1c6zyqqt2lnko10zomc3o"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/23/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache ECharts has a cross-site scripting (XSS) vulnerability"
}

CVE-2026-45249 (GCVE-0-2026-45249)

Vulnerability from cvelistv5 – Published: 2026-05-25 07:38 – Updated: 2026-05-26 16:17

Title

Apache ECharts: XSS in Lines series tooltip rendering

Summary

A cross-site scripting (XSS) vulnerability exists in Apache ECharts in the Lines series tooltip rendering logic. This issue affects Apache ECharts: from before 6.1.0. In versions prior to 6.1.0, if both Lines series and tooltip are used, and no user-specified tooltip.formatter is provided, and series.data[i].name is specified, raw HTML string series.data[i].name can be rendered through innerHTML sink into tooltip content. Although tooltip is allowed to accept user-provided raw HTML via a custom tooltip.formatter, the built-in tooltip formatters conventionally perform HTML escaping automatically. This case breaks that convention and may unexpectedly lead to script execution when tooltips are displayed. Users are recommended to upgrade to version 6.1.0 if using the Lines series in this way, which fixes the issue.

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-26 16:17 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1090 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/apache/echarts/pull/21608	patchtechnical-description
https://echarts.apache.org/en/option.html#series-lines
https://echarts.apache.org/handbook/en/best-pract…	technical-description
https://lists.apache.org/thread/1g6xk7gd9vg1c6zyq…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/05/23/4

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache ECharts	Affected: 0 , < 6.1.0 (semver)

Credits

Lakshmikanthan K

Show details on NVD website

JSON

To clipboard

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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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