Vulnerability · Published Aug 10, 2026 · Assigned by VulnCheck
CVE-2026-69116FlyEnv < 4.18.0 Cross-Site Scripting via v-html
Medium 6.1
In plain English
A medium-severity cross-site scripting in FlyEnv from xpf0000. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.3%top 72.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- Researcher Disclosure technical-description, exploit, issue-tracking
- FlyEnv v4.18.0 Release Notes release-notes
- Pull Request issue-tracking, patch
- Patch Commit patch
- https://www.vulncheck.com/advisories/flyenv-cross-site-scripting-via-v-html third-party-advisory