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TI-2026-21037 Aliases CVE-2026-26023

Client‑side DOM XSS in the web chat app of Dify when using echarts

Priority MEDIUM 57CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00299 22nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed dify (langgenius): 1.13.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
langgeniusdifybefore 1.13.01.13.0Patch availableCNA
  • dify Vendorlanggenius Affected before 1.13.0 Fixed in 1.13.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:dify:dify:*:*:*:*:*:*:*:*up to 1.11.4VulnerableDify
  • cpe:2.3:a:dify:dify:*:*:*:*:*:*:*:* Versions up to 1.11.4 Vulnerable ·Dify

Remediation

  • Fix · CNA dify (langgenius) Fixed in 1.13.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26023

References

Exploit 1

Patch 1

Other 1

  • TI-2025-35265 Default credentials in Dify thru 1.5.1. CVSS 3.1CRITICAL 9.8
  • TI-2026-30343 Dify < 1.14.2 Authorization Bypass via Trace Configuration Endpoints CVSS 4.0CRITICAL 9.3
  • TI-2026-68373 Unauthenticated server-side request forgery in Dify remote file upload CVSS 3.1HIGH 8.3
  • TI-2026-30344 Dify v1.14.1 Path Traversal via Plugin Daemon Internal API Access CVSS 4.0CRITICAL 9.3
  • TI-2026-44066 Dify < 1.16.0-rc1 SQL Injection via MyScale Vector Store search_by_full_text CVSS 4.0HIGH 8.7
  • TI-2025-03045 Unsanitized Input in langgenius/dify CVSS 3.1HIGH 7.2
See all 48 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences