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CVE-2026-41109: GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability

highCVSS 8.8CVE-2026-41109
Improper neutralization of special elements in output used by a downstream component ('injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to bypass a security feature over a network.

CSIRTS triage

vendor: GitHubproduct: GitHub Copilot and Visual Studio CodeAuthentication bypass
What
Improper neutralization of special elements in output used by a downstream component ('injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to bypass a security feature over a network.
Who is affected
Users of GitHub Copilot and Visual Studio Code.
Urgency
Remediation is urgent due to the high severity and potential for security feature bypass.
Action
Update GitHub Copilot and Visual Studio Code to the latest version.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 8.8
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41109

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-41109coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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