{"id":"ALPINE-CVE-2026-97033","details":"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 CRT startup objects to an attacker-controlled directory; \"-target\" in Clang falls back to executing target helper tools from the current working directory when not found in PATH; \"-isysroot\" and \"-Wl,-syslibroot\" can pass a regular file on disk to GNU ld.bfd, which interprets it as a positional linker script; and \"-x\" permitted specifying arbitrary compiler input languages beyond those supported by cgo. \"--sysroot\" and \"-target\" are now disallowed in \"#cgo\" flags, \"-isysroot\" and \"-Wl,-syslibroot\" are verified not to point to regular files, and \"-x\" is restricted to the C, C++, Objective-C, and assembler languages supported by cgo.","modified":"2026-11-13T10:30:02.936123135Z","published":"2026-11-11T05:19:57.253Z","upstream":["CVE-2026-97033"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2026-97033"}],"affected":[{"package":{"name":"go","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/go?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-97033.json"}}],"schema_version":"1.9.2"}