{"id":"EUVD-2026-30055","enisaUuid":"c8d53830-8b43-3f87-9384-b472db58be14","description":"GitHub Copilot CLI brings AI-powered coding assistance directly to your command line. Prior to 1.0.43, a  security vulnerability has been identified in GitHub Copilot CLI where a malicious bare git repository nested inside a project directory can achieve arbitrary code execution when the agent performs git operations. By exploiting git\u0027s automatic bare repository discovery during directory traversal, an attacker can set core.fsmonitor or other executable config keys to run arbitrary commands without user awareness or approval. The vulnerability arises because git\u0027s core.fsmonitor config key (and 15+ similar keys such as core.hookspath, diff.external, merge.tool, etc.) can specify arbitrary shell commands that git will execute as part of normal operations like status, diff, or rev-parse. This vulnerability is fixed in 1.0.43.","datePublished":"May 13, 2026, 3:45:26 PM","dateUpdated":"May 13, 2026, 6:38:57 PM","baseScore":8.5,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","references":"https://github.com/github/copilot-cli/security/advisories/GHSA-9ccr-r5hg-74gf\n","aliases":"CVE-2026-45033\nGHSA-9ccr-r5hg-74gf\n","assigner":"GitHub_M","epss":0.35,"enisaIdProduct":[{"id":"ec8c6c5a-f1e4-3385-b74e-7c074c9f544a","product":{"name":"copilot-cli","vendor":{"name":"GitHub"}},"product_version":"\u003c 1.0.43"}],"enisaIdVendor":[{"id":"49f980d6-dfe5-368d-8040-2ceef9e32295","vendor":{"name":"GitHub"}}],"enisaIdVulnerability":[{"id":"0c2b1b05-316d-3c7d-959c-c6ea897772ab","vulnerability":{"id":"GHSA-9ccr-r5hg-74gf","description":"GitHub Copilot CLI: Nested Bare Repository Can Execute Arbitrary Commands via core.fsmonitor","datePublished":"May 11, 2026, 4:16:06 PM","dateUpdated":"Jun 9, 2026, 10:56:45 AM","baseScore":0.0,"references":"https://github.com/github/copilot-cli/security/advisories/GHSA-9ccr-r5hg-74gf\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45033\nhttps://github.com/github/copilot-cli\n","enisa_id":"EUVD-2026-30055\n","aliases":"CVE-2026-45033\nGHSA-9ccr-r5hg-74gf\n","epss":0.0,"dataProcessed":"Nov 1, 2026, 2:00:21 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"59be8e06-d919-3adf-9060-2859d40c960b","vulnerability":{"id":"CVE-2026-45033","description":"GitHub Copilot CLI brings AI-powered coding assistance directly to your command line. Prior to 1.0.43, a  security vulnerability has been identified in GitHub Copilot CLI where a malicious bare git repository nested inside a project directory can achieve arbitrary code execution when the agent performs git operations. By exploiting git\u0027s automatic bare repository discovery during directory traversal, an attacker can set core.fsmonitor or other executable config keys to run arbitrary commands without user awareness or approval. The vulnerability arises because git\u0027s core.fsmonitor config key (and 15+ similar keys such as core.hookspath, diff.external, merge.tool, etc.) can specify arbitrary shell commands that git will execute as part of normal operations like status, diff, or rev-parse. This vulnerability is fixed in 1.0.43.","datePublished":"May 13, 2026, 3:45:26 PM","dateUpdated":"May 13, 2026, 6:38:57 PM","status":"PUBLISHED","baseScore":8.5,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","references":"https://github.com/github/copilot-cli/security/advisories/GHSA-9ccr-r5hg-74gf\n","enisa_id":"EUVD-2026-30055\n","assigner":"GitHub_M","epss":0.35,"dataProcessed":"Nov 1, 2026, 7:18:17 AM","vulnerabilityProduct":[{"id":"42824913-df8e-3d1f-9aee-909e181a2a29","product":{"name":"copilot-cli","vendor":{"name":"GitHub"}},"product_version":"\u003c 1.0.43"}],"vulnerabilityVendor":[{"id":"62e11b8d-9675-39aa-9b8e-a9df6c9867f3","vendor":{"name":"GitHub"}}]}}],"enisaIdAdvisory":[]}