{"answers":{"affected":"1 open source package ship an affected version, including toolchain.","exploited":"There is no known exploitation of CVE-2026-97034 in the wild and no public exploit code.","exposure":"","fix":"Upgrade toolchain to a fixed version for your release line: 1.26.11 or 1.27.4.","what":"CVE-2026-97034 is a vulnerability in cmd/go, published on 11 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-97034 and fix it if it is affected.\n\nWhat it is: CVE-2026-97034 is a vulnerability in cmd/go, published on 11 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-97034 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- toolchain (Go): affected all versions; fixed in 1.26.11, 1.27.4\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-97034/ (Markdown: https://insights.sbomify.com/CVE-2026-97034/index.md)","id":"CVE-2026-97034","markdown":"https://insights.sbomify.com/CVE-2026-97034/index.md","name":"CVE-2026-97034","record":{"aliases":["ALPINE-CVE-2026-97034","DEBIAN-CVE-2026-97034","GHSA-775q-r7gv-cr2x","GO-2026-6857","UBUNTU-CVE-2026-97034"],"analysis":null,"analysis_generated_by":null,"assigner":"Go","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"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 link spec evaluates \"%:include(libgomp.spec)\" or \"%:include(libsanitizer.spec)\" and searches for spec files in \"-L\" and sysroot directories (including subdirectories and multilib sibling directories such as \"../lib64\"), as well as the working directory when \"-fopenmp\" or \"-fopenacc\" is used or when \"-fsanitize=\" is combined with \"-static\" or \"-static-lib*\". The go command now rejects \"-L\", \"-isysroot\", and \"-Wl,-syslibroot\" directories (and the working and package directories when applicable) that contain GCC spec files, and disallows \"@\" and \"-\" prefixes in \"-fsanitize=\" compiler flag values.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Arbitrary command execution via GCC spec files in cgo linker search directories in cmd/go","id":"CVE-2026-97034","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":4,"next":{"headline":"Unexpected code execution and arbitrary file write via Clang -gen-* and GCC -gnat* flags in cgo in cmd/go","id":"CVE-2026-97035"},"nickname":null,"packages":[{"ecosystem":"Go","fixed":["1.26.11","1.27.4"],"introduced":["0","1.27.0-0"],"last_affected":[],"package":"toolchain","purl":"pkg:golang/toolchain","source":"GO-2026-6857"}],"prev":{"headline":"Unexpected code execution via --sysroot, -target, -isysroot, -Wl,-syslibroot, and -x cgo flags in cmd/go","id":"CVE-2026-97033"},"products":["cmd/go"],"published":"2026-11-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-11-11","vendors":["Go toolchain"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-97034/"}