{"id":"CVE-2026-21518","state":"PUBLISHED","title":"GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability","description":"Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.","publishedAt":"2026-02-10T17:51:15.121Z","updatedAt":"2026-08-19T16:26:19.457Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","source":"microsoft"},"assigner":"microsoft","products":["Microsoft Microsoft Visual Studio Code CoPilot Chat Extension","Microsoft Visual Studio Code"],"affected":[{"vendor":"Microsoft","product":"Microsoft Visual Studio Code CoPilot Chat Extension","versions":[{"version":"0.27.0","status":"affected","lessThan":"0.37.1","versionType":"custom"}]},{"vendor":"Microsoft","product":"Visual Studio Code","versions":[{"version":"1.0.0","status":"affected","lessThan":"1.110.1","versionType":"custom"}]}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21518"],"weaknesses":["CWE-77"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21518.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21518","state":"PUBLISHED","datePublished":"2026-02-10T17:51:15.121Z","dateUpdated":"2026-08-19T16:26:19.457Z","assignerShortName":"microsoft","assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateReserved":"2025-12-30T18:10:54.845Z"},"containers":{"cna":{"title":"GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability","descriptions":[{"lang":"en-US","value":"Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network."}],"affected":[{"vendor":"Microsoft","product":"Microsoft Visual Studio Code CoPilot Chat Extension","versions":[{"version":"0.27.0","status":"affected","lessThan":"0.37.1","versionType":"custom"}]},{"vendor":"Microsoft","product":"Visual Studio Code","versions":[{"version":"1.0.0","status":"affected","lessThan":"1.110.1","versionType":"custom"}]}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21518","name":"GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability","tags":["vendor-advisory","patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","baseSeverity":"HIGH","baseScore":8.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-77","description":"CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"shortName":"microsoft","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateUpdated":"2026-08-19T16:26:19.457Z"},"datePublic":"2026-02-10T16:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0","versionEndExcluding":"1.110.1"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:visual_studio_code_copilot_chat_extension:*:*:*:*:*:*:*:*","versionStartIncluding":"0.27.0","versionEndExcluding":"0.37.1"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-21518","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-02-11T04:55:50.561747Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T15:04:06.620Z"}}]}}}