gcdRadar
archive/Patch now/AIR-2026-0024
closedclosed 22 Jun 2026Patch now2 Disclosed vulnerabilityAI

GitHub Copilot Vulnerability Allows Filesystem Access via URI Parameter

GitHub Copilot

GitHub Copilot version 1.372.0 contains a vulnerability enabling unapproved filesystem access outside workspace folders. A patch or update is recommended to mitigate potential indirect prompt injection and exfiltration risks.

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
7.5
EPSS
0.01 · top 32% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
22 Jun 2026
last update
22 Jun 2026
CVE ids
CVE-2025-66389other records

Timeline · 1

  1. 22 Jun 2026CVE-2025-66389: GitHub Copilot 1.372.0 allows filesystem access outside of a workspace folder (without user approval) via a file-handler URI…

Sources · 1

Advisories and databases

  1. 2026-06-22
    CVE-2025-66389: GitHub Copilot 1.372.0 allows filesystem access outside of a workspace folder (without user approval) via a file-handler URI…
    NVD · nvd.nist.gov/vuln/detail/CVE-2025-66389

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
Microsoft, Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
github-copilot
dates
happened 22 Jun 2026 · first reported 22 Jun 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 06:33Z · updated 2026-10-18 06:33Z

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
# GitHub Copilot Vulnerability Allows Filesystem Access via URI Parameter

https://gcdradar.vercel.app/incidents/github-copilot-vulnerability-allows-filesystem-access-via-ur · AIR-2026-0024 · closed 2026-06-22

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-06-22
- AI role: Attack on AI
- Products: GitHub Copilot
- CVE ids: CVE-2025-66389
- CVSS: 7.5

## Summary

GitHub Copilot version 1.372.0 contains a vulnerability enabling unapproved filesystem access outside workspace folders. A patch or update is recommended to mitigate potential indirect prompt injection and exfiltration risks.

## What to do

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

## Latest updates

- 2026-06-22: CVE-2025-66389: GitHub Copilot 1.372.0 allows filesystem access outside of a workspace folder (without user approval) via a file-handler URI… (https://nvd.nist.gov/vuln/detail/CVE-2025-66389)

## Sources

- 2026-06-22 NVD: CVE-2025-66389: GitHub Copilot 1.372.0 allows filesystem access outside of a workspace folder (without user approval) via a file-handler URI… https://nvd.nist.gov/vuln/detail/CVE-2025-66389

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

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