CVE-2026-26023

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

CVSS 5.3 MEDIUMEPSS 0.2%CWE-79

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.

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

Affected products

langgenius · dify

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References

https://github.com/langgenius/dify/commit/378a1d7d08bd0ac5c75eaadc075a0f35211fcb8e https://github.com/langgenius/dify/releases/tag/1.13.0 https://github.com/langgenius/dify/security/advisories/GHSA-qqjx-5h5w-x5vj