CVE-2026-26023— Client‑side DOM XSS in the web chat app of Dify when using echarts
Quick assessment
Affected
langgenius dify
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
dify是LangGenius开源的一个开源的 LLM 应用程序开发平台。 dify 1.13.0之前版本存在跨站脚本漏洞，该漏洞源于Web应用聊天前端使用echarts时未充分验证输入，可能导致跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-26023
Vulnerability Information
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Vulnerability Title
Client‑side DOM XSS in the web chat app of Dify when using echarts
Source: CVE Program / CVE List V5
Vulnerability Description
Dify is an open-source LLM app development platform. Prior to 1.13.0, a cross site scripting vulnerability has been found in the web application chat frontend when using echarts. User or llm inputs containing echarts containing a specific javascript payload will be executed. This vulnerability is fixed in 1.13.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
dify 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
dify是LangGenius开源的一个开源的 LLM 应用程序开发平台。 dify 1.13.0之前版本存在跨站脚本漏洞，该漏洞源于Web应用聊天前端使用echarts时未充分验证输入，可能导致跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| langgenius | dify | < 1.13.0 | - |
|
II. Public POCs for CVE-2026-26023
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-26023 (1)
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V. Comments for CVE-2026-26023
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