CVE-2026-116169 SiYuan 2.10.0 before 3.8.7 Stored XSS via KaTeX \href in Math Blocks
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-116169?
CVE-2026-116169 is a medium-severity vulnerability in siyuan-note siyuan, published on 25 Oct 2026.
Official description
SiYuan from 2.10.0 before 3.8.7 contains a stored cross-site scripting vulnerability that allows users with edit permission to inject script by placing javascript: URLs in math block content rendered with KaTeX trust enabled. Attackers can store \href, \url, or \includegraphics payloads that mathRender assigns via innerHTML, executing script in the application origin when a reader clicks the rendered link.
Weakness: CWE-79
Which versions are affected by CVE-2026-116169?
How do I fix CVE-2026-116169?
No fix has been published for CVE-2026-116169 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-116169 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-116169 exists.
Sources
Also known as GHSA-hhvq-jqv9-pgjq, GHSA-mqcm-q7hm-v37p.