{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-27140", "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "state": "PUBLISHED", "assignerShortName": "Go", "dateReserved": "2026-02-17T19:57:28.435Z", "datePublished": "2026-04-08T01:06:57.893Z", "dateUpdated": "2026-04-08T01:06:57.893Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "shortName": "Go", "dateUpdated": "2026-04-08T01:06:57.893Z"}, "title": "Code execution vulnerability in SWIG code generation in cmd/go", "descriptions": [{"lang": "en", "value": "SWIG file names containing 'cgo' and well-crafted payloads could lead to code smuggling and arbitrary code execution at build time due to trust layer bypass."}], "affected": [{"vendor": "Go toolchain", "product": "cmd/go", "collectionURL": "https://pkg.go.dev", "packageName": "cmd/go", "versions": [{"version": "0", "lessThan": "1.25.9", "status": "affected", "versionType": "semver"}, {"version": "1.26.0-0", "lessThan": "1.26.2", "status": "affected", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-501: Trust Boundary Violation"}]}], "references": [{"url": "https://go.dev/cl/763768"}, {"url": "https://go.dev/issue/78335"}, {"url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"}, {"url": "https://pkg.go.dev/vuln/GO-2026-4871"}], "credits": [{"lang": "en", "value": "Juho Fors\u00e9n of Mattermost"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "SWIG file names containing 'cgo' and well-crafted payloads could lead to code smuggling and arbitrary code execution at build time due to trust layer bypass."}], "id": "CVE-2026-27140", "lastModified": "2026-04-08T02:16:02.887", "metrics": {}, "published": "2026-04-08T02:16:02.887", "references": [{"source": "security@golang.org", "url": "https://go.dev/cl/763768"}, {"source": "security@golang.org", "url": "https://go.dev/issue/78335"}, {"source": "security@golang.org", "url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"}, {"source": "security@golang.org", "url": "https://pkg.go.dev/vuln/GO-2026-4871"}], "sourceIdentifier": "security@golang.org", "vulnStatus": "Received"}

{}

{}