Ohne Score

CVE-2026-97036Arbitrary code execution during build on darwin via "-l to_library" in cgo in cmd/go

Go toolchain cmd/go Veröffentlicht: 2026-11-11 06:13 (vor 12 Stunden)

Beschreibung

On Darwin, building a malicious package that uses cgo could cause arbitrary code execution when using the Apple linker due to passing "-l to_library <path>" in a "#cgo LDFLAGS" directive. The Apple linker recombines the separated arguments "-l" and "to_library" into "-lto_library", which loads an arbitrary LTO plugin dynamic library at link time. The go command now disallows "-l" followed by "to_library" in "#cgo LDFLAGS", rejects "-lazy_library", "-lazy_framework", "-load_hidden", "-library", and "-library-path", and checks recombined "-l" arguments against disallowed linker flags and patterns.

Schwachstellentyp (CWE): CWE-88

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Hersteller	Produkt	Versionen
Go toolchain	cmd/go	< 1.26.11, 1.27.0-0 – < 1.27.4

Referenzen und Patches

Neue CVEs im selben Produkt — Go

Ohne Score

CVE-2026-97033 vor 12 Stunden

Unexpected code execution via --sysroot, -target, -isysroot, -Wl,-syslibroot, and -x cgo flags in cmd/go

Go toolchain cmd/go

Building a malicious package that uses cgo could cause arbitrary code execution at build time through several compiler and linker flags permitted in "#cgo" directives. Specifically, "--sysroot" in GCC and Clang relocates compiler subprograms, spec files, and …

Ohne Score

CVE-2026-97034 vor 12 Stunden

Arbitrary command execution via GCC spec files in cgo linker search directories in cmd/go

Go toolchain cmd/go

When using GCC, building a malicious package that uses cgo could cause arbitrary command execution at link time via untrusted GCC spec files ("specs" or "*.spec"). When linking with "-fopenmp", "-fopenacc", or "-fsanitize=" in "#cgo LDFLAGS", GCC's built-in l…

Ohne Score

CVE-2026-97054 vor 12 Stunden

HTTP/1 server crash due to MaxBytesReader header race in net/http

Go standard library net/http

For HTTP/1 servers, when MaxBytesReader's limit is exceeded, "Connection: close" header is automatically set without synchronization, which might race with another header being set explicitly in the server handler. As a result, an HTTP/1 server that utilizes …

Ohne Score

CVE-2026-97035 vor 12 Stunden

Unexpected code execution and arbitrary file write via Clang -gen-* and GCC -gnat* flags in cgo in cmd/go

Go toolchain cmd/go

When using Clang or GCC, building a malicious package that uses cgo could cause unexpected code execution at build time or write files to arbitrary directories via "-gen-*" or "-gnat*" flags in "#cgo" directives. The "-g*" wildcard in the compiler and linker …

Ohne Score

CVE-2026-97037 vor 12 Stunden

Linker script injection via split -Wl, flags and Darwin or symbol linker flags in cgo in cmd/go

Go toolchain cmd/go

Building a malicious package that uses cgo could cause arbitrary code execution at link time by passing linker script files to the host linker via "#cgo LDFLAGS". Split "-Wl," flags that consume a following argument (such as "-Wl,-rpath", "-Wl,--just-symbols"…

Ohne Score

CVE-2026-97038 vor 12 Stunden

Arbitrary code execution via crafted .syso files and cgo linker input files in cmd/go

Go toolchain cmd/go

Building a malicious package containing ".syso" files or cgo linker inputs could inject arbitrary linker flags or execute arbitrary code at link time. Linker input files—including ".syso" files, direct object or library inputs in "#cgo LDFLAGS", and libraries…