CVE-2026-69116 FlyEnv < 4.18.0 Cross-Site Scripting via v-html
Attackers can execute arbitrary code and access the filesystem by injecting malicious scripts via unsanitized markdown or AI chat content in FlyEnv.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-69116?
CVE-2026-69116 is a medium-severity cross-site scripting vulnerability in xpf0000 FlyEnv, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
FlyEnv before 4.18.0 fails to sanitize HTML from markdown rendering and AI chat content passed to Vue v-html directives. Attackers can inject malicious scripts through markdown sources or chat messages that execute in the Electron renderer process with access to Node.js APIs and the filesystem.
Weakness: CWE-79
Which versions are affected by CVE-2026-69116?
How do I fix CVE-2026-69116?
No fix has been published for CVE-2026-69116 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-69116 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-69116 exists.
Sources
Also known as GHSA-w92g-j683-fhvq.