Not scored
CVE-2026-22813
Malicious website can execute commands on the local system through XSS in the OpenCode web UI
anomalycoopencode
Status
- Not in CISA KEV
Exploit probabilityEPSSchecked 25 Oct
0.9%probability of exploitation in the next 30 days
Higher than 60% of scored CVEs
SeverityCVSS
–Not scored yet
Description NVD
OpenCode is an open source AI coding agent. The markdown renderer used for LLM responses will insert arbitrary HTML into the DOM. There is no sanitization with DOMPurify or even a CSP on the web interface to prevent JavaScript execution via HTML injection. This means controlling the LLM response for a chat session gets JavaScript execution on the http://localhost:4096 origin. This vulnerability is fixed in 1.1.10.
Coverage 1 article · 1 outlet
- CVE-2026-22813 Signals 2026 Shift to High Trust ExploitsCloudflare · first in our coverage