Command injection RCE in GitHub Copilot for JetBrains
Information currently not available in the provided content to describe the vulnerable function/flow beyond: CVE-2026-21516 is an improper neutralization of special elements used in a command (command injection) in GitHub Copilot for JetBrains that could allow an unauthorized attacker to execute code over a network. CVSS v3.1: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
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Impact, mitigation & remediation
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Impact
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Mitigation
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Remediation
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Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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Recent activity
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remote code execution vulnerability in GitHub Copilot for JetBrains.
A command injection vulnerability in GitHub Copilot that could allow an unauthorized remote attacker to execute code over a network (CVSS v3.1 vector indicates network reachable with no privileges required, but user interaction required).
A remote code execution vulnerability in GitHub Copilot for JetBrains (no additional details provided in the content).
A remote code execution vulnerability affecting GitHub Copilot for JetBrains.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.