CVE-2026-22813

MEDIUM

6.1

Description

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.

Details CVE

Score CVSS v3.16.1

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie1/12/2026

Derniere modification1/21/2026

Sourcenvd

Observations honeypot0

Produits affectes

anoma:opencode

Faiblesses (CWE)

CWE-79

References

https://github.com/anomalyco/opencode/security/advisories/GHSA-c83v-7274-4vgp(security-advisories@github.com)

https://github.com/anomalyco/opencode/security/advisories/GHSA-c83v-7274-4vgp(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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