CVE-2025-66389
GitHub Copilot 1.372.0 allows filesystem access outside of a workspace folder (without user approval) via a file-handler URI parameter to fetch_webpage. Therefore, exfiltration could occur if there is indirect prompt injection.
- Affected products
- Github Copilot
- Microsoft Github Copilot
- = 1.372.0
- Fix
- Available
- CVSS 3.1
- 7.5 HIGH
- EPSS
- 0.9% (58th percentile)
- Weakness
- CWE-552
- NVD status
- Analyzed
- Published
- 2026-06-22
CVE-2025-66389 at NVD
No indexed exploits for CVE-2025-66389 yet
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No exploit for CVE-2025-66389 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.