CVE-2026-83953: Command injection vulnerability in Github Copilot

# CVE-2026-83953: Command injection vulnerability in Github Copilot

https://gcdradar.vercel.app/incidents/cve-2026-83953-command-injection-vulnerability-in-github-cop · AIR-2026-1875 · closed 2026-11-10

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability): Disclosed vulnerability with medium CVSS score and no exploitation reported.
- Fix status: Fix status unknown
- First reported: 2026-11-10
- AI role: Attack on AI
- Products: Github Copilot
- CVE ids: CVE-2026-83953
- CVSS: 5.5

## Summary

Improper command neutralization in Github Copilot allows local information disclosure. The vulnerability is rated medium severity with an available advisory.

## What to do

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

## Latest updates

- 2026-11-10: CVE-2026-83953 GitHub Copilot for Jetbrains Information Disclosure Vulnerability (https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83953)
- 2026-11-10: CVE-2026-83953: Improper neutralization of special elements used in a command ('command injection') in Github Copilot allows an authorized… (https://nvd.nist.gov/vuln/detail/CVE-2026-83953)

## Sources

- 2026-11-10 NVD: CVE-2026-83953: Improper neutralization of special elements used in a command ('command injection') in Github Copilot allows an authorized… https://nvd.nist.gov/vuln/detail/CVE-2026-83953
- 2026-11-10 MSRC: CVE-2026-83953 GitHub Copilot for Jetbrains Information Disclosure Vulnerability https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83953

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