{"id":"CVE-2026-35454","state":"PUBLISHED","title":"Code Extension Marketplace has a Zip Slip Path Traversal","description":"The Code Extension Marketplace is an open-source alternative to the VS Code Marketplace. Prior to 2.4.2, Zip Slip vulnerability in coder/code-marketplace allowed a malicious VSIX file to write arbitrary files outside the extension directory. ExtractZip passed raw zip entry names to a callback that wrote files via filepath.Join with no boundary check; filepath.Join resolved .. components but did not prevent the result from escaping the base path. This vulnerability is fixed in 2.4.2.","publishedAt":"2026-04-06T21:51:53.048Z","updatedAt":"2026-04-07T15:08:45.865Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["coder code-marketplace"],"affected":[{"vendor":"coder","product":"code-marketplace","versions":[{"version":"< 2.4.2","status":"affected"}]}],"references":["https://github.com/coder/code-marketplace/security/advisories/GHSA-8x9r-hvwg-c55h","https://github.com/coder/code-marketplace/releases/tag/v2.4.2"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/35xxx/CVE-2026-35454.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35454","state":"PUBLISHED","datePublished":"2026-04-06T21:51:53.048Z","dateUpdated":"2026-04-07T15:08:45.865Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-02T19:25:52.193Z"},"containers":{"cna":{"title":"Code Extension Marketplace has a Zip Slip Path Traversal","descriptions":[{"lang":"en","value":"The Code Extension Marketplace is an open-source alternative to the VS Code Marketplace. Prior to 2.4.2, Zip Slip vulnerability in coder/code-marketplace allowed a malicious VSIX file to write arbitrary files outside the extension directory. ExtractZip passed raw zip entry names to a callback that wrote files via filepath.Join with no boundary check; filepath.Join resolved .. components but did not prevent the result from escaping the base path. This vulnerability is fixed in 2.4.2."}],"affected":[{"vendor":"coder","product":"code-marketplace","versions":[{"version":"< 2.4.2","status":"affected"}]}],"references":[{"url":"https://github.com/coder/code-marketplace/security/advisories/GHSA-8x9r-hvwg-c55h","name":"https://github.com/coder/code-marketplace/security/advisories/GHSA-8x9r-hvwg-c55h","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/coder/code-marketplace/releases/tag/v2.4.2","name":"https://github.com/coder/code-marketplace/releases/tag/v2.4.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-06T21:51:53.048Z"},"source":{"advisory":"GHSA-8x9r-hvwg-c55h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-07T14:35:14.881298Z","id":"CVE-2026-35454","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-07T15:08:45.865Z"}}]}}}