{"id":"CVE-2026-97042","published":"2026-11-11T05:19:58.563","lastModified":"2026-11-11T05:19:58.563","description":"Building a malicious package that uses \"//go:cgo_import_dynamic\" or links against a crafted PE object on Windows could pass unsafe library arguments to the external linker. The compiler only checked the first character of the library name in \"//go:cgo_import_dynamic\" directives and skipped validation in cgo-generated files. In addition, on Windows, \"cmd/cgo\" and \"cmd/link\" did not validate imported DLL names extracted from PE object files before emitting \"-l<name>\" flags for the external linker, allowing a crafted DLL name containing \"..\" path traversal or special characters to reference arbitrary files on disk. The compiler now validates every character of the library name in \"//go:cgo_import_dynamic\" directives (including in cgo-generated files on Windows) and rejects \"..\" path traversal, and \"cmd/cgo\" and \"cmd/link\" reject PE imported DLL names containing path separators, \"..\", \":\", or leading \"-\" or \"@\".","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://go.dev/cl/862155","tags":[]},{"url":"https://go.dev/issue/82568","tags":[]},{"url":"https://groups.google.com/g/golang-announce/c/iY8TY0wWgbM","tags":[]},{"url":"https://pkg.go.dev/vuln/GO-2026-6849","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}