CVE-2026-83953

GitHub Copilot for Jetbrains Information Disclosure Vulnerability

CVE-2026-83953 is fixed in GitHub Copilot Plugin for JetBrains IDEs on 1 platform by KB1163583 (version ), released November 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

5.5

Important

Exploitation

None reported

N/A

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

n/a

<p>Improper neutralization of special elements used in a command ('command injection') in Github Copilot allows an authorized attacker to disclose information locally.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
GitHub Copilot Plugin for JetBrains IDEs		KB1163583	Nov 10, 2026

Details

Published
November 10, 2026
Weakness
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83953

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