CVE-2026-45249

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://echarts.apache.org/en/option.html#series-lines	Product
https://echarts.apache.org/handbook/en/best-practices/security/#passing_raw_html_safely	Product
https://github.com/apache/echarts/pull/21608	Issue Tracking Patch
https://lists.apache.org/thread/1g6xk7gd9vg1c6zyqqt2lnko10zomc3o	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/23/4	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:echarts:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-25 08:16

Updated : 2026-07-23 17:10

NVD link : CVE-2026-45249

Mitre link : CVE-2026-45249

CVE.ORG link : CVE-2026-45249

JSON object : View

Products Affected

apache

echarts

CWE

CWE-79

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

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