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CVE-2026-41109 is an injection vulnerability in GitHub Copilot and Visual Studio caused by improper neutralization of special elements in output used by a downstream component. The flaw allows attacker-controlled instructions embedded in user input or external content to be processed as trusted instructions by the affected component. In the described exploitation scenario, an unauthorized remote attacker can convince a user to open a maliciously crafted package file in Visual Studio, leading the affected functionality to bypass intended guardrails. Reported consequences include bypass of path validation checks governing which files may be modified and bypass of user approval requirements for sensitive file locations.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Visual Studio Code vulnerability included in a cluster of fixes affecting VSCode, covering issues such as elevation of privilege, information disclosure, remote code execution, and security feature bypass. The specific flaw type for this CVE is not individually identified in the content.
A vulnerability in GitHub Copilot and Visual Studio involving improper neutralization of special elements in output used by a downstream component, allowing an unauthorized attacker to bypass a security feature over a network.
A security feature bypass vulnerability in GitHub Copilot and Visual Studio caused by improper neutralization of special elements in output used by a downstream component, allowing an unauthorized network attacker to bypass path validation safeguards and potentially modify protected files after convincing a user to open a malicious package file.
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.