gcdRadar
archive/Patch now/AIR-2026-1210
closedclosed 20 Jul 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-64650: Flaw in @ai-sdk/harness-opencode allows unauthorized tool execution

@ai-sdk/harness-opencode, codex-sdk

An authorization vulnerability in the @ai-sdk/harness-opencode tool allows untrusted sandbox processes to invoke host-exposed tools. No active exploitation has been reported.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
6.3
EPSS
<0.01 · top 94% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
20 Jul 2026
last update
20 Jul 2026
CVE ids
CVE-2026-64650other records

Timeline · 1

  1. 20 Jul 2026CVE-2026-64650: The `@ai-sdk/harness-opencode` tool is an HarnessV1 adapter backed by @openai/codex-sdk, which drives the codex command line…

Sources · 1

Advisories and databases

  1. 2026-07-20
    CVE-2026-64650: The `@ai-sdk/harness-opencode` tool is an HarnessV1 adapter backed by @openai/codex-sdk, which drives the codex command line…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-64650

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
OpenAI, Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
dates
happened 20 Jul 2026 · first reported 20 Jul 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-64650: Flaw in @ai-sdk/harness-opencode allows unauthorized tool execution

https://gcdradar.vercel.app/incidents/cve-2026-64650-flaw-in-ai-sdk-harness-opencode-allows-unauth · AIR-2026-1210 · closed 2026-07-20

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-07-20
- AI role: Attack on AI
- Products: @ai-sdk/harness-opencode, codex-sdk
- CVE ids: CVE-2026-64650
- CVSS: 6.3

## Summary

An authorization vulnerability in the @ai-sdk/harness-opencode tool allows untrusted sandbox processes to invoke host-exposed tools. No active exploitation has been reported.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-07-20: CVE-2026-64650: The `@ai-sdk/harness-opencode` tool is an HarnessV1 adapter backed by @openai/codex-sdk, which drives the codex command line… (https://nvd.nist.gov/vuln/detail/CVE-2026-64650)

## Sources

- 2026-07-20 NVD: CVE-2026-64650: The `@ai-sdk/harness-opencode` tool is an HarnessV1 adapter backed by @openai/codex-sdk, which drives the codex command line… https://nvd.nist.gov/vuln/detail/CVE-2026-64650

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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