CVE-2026-97041

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97041", "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "state": "PUBLISHED", "assignerShortName": "Go", "dateReserved": "2026-09-23T23:05:04.987Z", "datePublished": "2026-11-11T03:13:15.269Z", "dateUpdated": "2026-11-11T03:13:15.269Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "shortName": "Go", "dateUpdated": "2026-11-11T03:13:15.269Z"}, "title": "Host linker flag injection via //go:cgo_* directives in cmd/compile and cmd/link", "descriptions": [{"lang": "en", "value": "Building a malicious package containing \"//go:cgo_*\" compiler directives could inject arbitrary flags into the external linker invocation on ELF platforms. The compiler and linker did not reject commas in \"//go:cgo_import_dynamic\", \"//go:cgo_export_dynamic\", \"//go:cgo_export_static\", \"//go:cgo_import_static\", and \"//go:cgo_dynamic_linker\" directives, and the linker passed the dynamic linker path using \"-Wl,--dynamic-linker,<path>\". Furthermore, the two-argument form of \"//go:cgo_import_dynamic\" (which is permitted in non-cgo Go source files) could overwrite the external symbol name of a symbol already marked for cgo export. A symbol name or dynamic linker path containing a comma or leading \"@\" could split \"-Wl,--export-dynamic-symbol=\" or \"-Wl,--dynamic-linker,\" into arbitrary host linker flags or response file arguments. The compiler and linker now reject commas in \"//go:cgo_*\" symbol and dynamic linker directives, the linker passes \"-Wl,--dynamic-linker=<path>\", and \"cgo_import_dynamic\" no longer overwrites symbols exported via \"cgo_export_dynamic\" or \"cgo_export_static\"."}], "affected": [{"vendor": "Go toolchain", "product": "cmd/compile", "collectionURL": "https://pkg.go.dev", "packageName": "cmd/compile", "versions": [{"version": "0", "lessThan": "1.26.11", "status": "affected", "versionType": "semver"}, {"version": "1.27.0-0", "lessThan": "1.27.4", "status": "affected", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Go toolchain", "product": "cmd/link", "collectionURL": "https://pkg.go.dev", "packageName": "cmd/link", "versions": [{"version": "0", "lessThan": "1.26.11", "status": "affected", "versionType": "semver"}, {"version": "1.27.0-0", "lessThan": "1.27.4", "status": "affected", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')"}]}], "references": [{"url": "https://go.dev/cl/862154"}, {"url": "https://go.dev/issue/82569"}, {"url": "https://groups.google.com/g/golang-announce/c/iY8TY0wWgbM"}, {"url": "https://pkg.go.dev/vuln/GO-2026-6850"}], "credits": [{"lang": "en", "value": "RyotaK (https://ryotak.net) of GMO Flatt Security Inc."}]}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://pkg.go.dev", "defaultStatus": "unaffected", "packageName": "cmd/compile", "product": "cmd/compile", "vendor": "Go toolchain", "versions": [{"lessThan": "1.26.11", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "1.27.4", "status": "affected", "version": "1.27.0-0", "versionType": "semver"}]}, {"collectionURL": "https://pkg.go.dev", "defaultStatus": "unaffected", "packageName": "cmd/link", "product": "cmd/link", "vendor": "Go toolchain", "versions": [{"lessThan": "1.26.11", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "1.27.4", "status": "affected", "version": "1.27.0-0", "versionType": "semver"}]}], "source": "security@golang.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Building a malicious package containing \"//go:cgo_*\" compiler directives could inject arbitrary flags into the external linker invocation on ELF platforms. The compiler and linker did not reject commas in \"//go:cgo_import_dynamic\", \"//go:cgo_export_dynamic\", \"//go:cgo_export_static\", \"//go:cgo_import_static\", and \"//go:cgo_dynamic_linker\" directives, and the linker passed the dynamic linker path using \"-Wl,--dynamic-linker,<path>\". Furthermore, the two-argument form of \"//go:cgo_import_dynamic\" (which is permitted in non-cgo Go source files) could overwrite the external symbol name of a symbol already marked for cgo export. A symbol name or dynamic linker path containing a comma or leading \"@\" could split \"-Wl,--export-dynamic-symbol=\" or \"-Wl,--dynamic-linker,\" into arbitrary host linker flags or response file arguments. The compiler and linker now reject commas in \"//go:cgo_*\" symbol and dynamic linker directives, the linker passes \"-Wl,--dynamic-linker=<path>\", and \"cgo_import_dynamic\" no longer overwrites symbols exported via \"cgo_export_dynamic\" or \"cgo_export_static\"."}], "id": "CVE-2026-97041", "lastModified": "2026-11-12T22:09:39.233", "metrics": {}, "published": "2026-11-11T05:19:58.417", "references": [{"source": "security@golang.org", "url": "https://go.dev/cl/862154"}, {"source": "security@golang.org", "url": "https://go.dev/issue/82569"}, {"source": "security@golang.org", "url": "https://groups.google.com/g/golang-announce/c/iY8TY0wWgbM"}, {"source": "security@golang.org", "url": "https://pkg.go.dev/vuln/GO-2026-6850"}], "sourceIdentifier": "security@golang.org", "vulnStatus": "Awaiting Analysis"}

{}

{"created": "2026-11-12T06:15:19.546314+00:00", "updated": "2026-11-12T23:45:10.995647+00:00", "vendors": [], "weaknesses": ["CWE-77", "CWE-20"]}