CVE-2026-21516: GitHub Copilot for Jetbrains Remote Code Execution Vulnerability
Microsoft · GitHub Copilot Plugin for JetBrains IDEs
Vendor fix available · Affected: Microsoft GitHub Copilot Plugin for JetBrains IDEs · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 60% of scored CVEs
DescriptionCVE.org
Improper neutralization of special elements used in a command ('command injection') in Github Copilot allows an unauthorized attacker to execute code over a network.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Microsoft · GitHub Copilot Plugin for JetBrains IDEsfrom 1.0.0 before 1.5.63
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Microsoft
- Published
- February 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-21516 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.