How severe is CVE-2026-22812?

CVE-2026-22812 has a CVSS 3.1 base score of 8.8 (HIGH). EPSS estimates a 16.8% probability of exploitation in the next 30 days.

CVE-2026-22812: OpenCode's Unauthenticated HTTP Server Allows

Description

OpenCode is an open source AI coding agent. Prior to 1.0.216, OpenCode automatically starts an unauthenticated HTTP server that allows any local process (or any website via permissive CORS) to execute arbitrary shell commands with the user's privileges. This vulnerability is fixed in 1.0.216.

Severity

CVSS 3.1 · CNA8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationpoc

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
anomalyco	opencode	< 1.0.216

References

1 Links

Other references

https://github.com/anomalyco/opencode/security/advisories/GHSA-vxw4-wv6m-9hhh

Record Details

Published

2026-01-12

Last updated

2026-01-13

Assigner (CNA)

GitHub_M

Credited to

Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-306 · Missing Authentication for Critical Function

IAM Tools Application Security Tools

CWE-749 · Exposed Dangerous Method or Function

IAM Tools Application Security Tools

CWE-942 · Permissive Cross-domain Policy

Application Security Tools

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.