{"cve":"CVE-2023-29405","nvd":{"published":"2023-06-08T21:15:17.197","modified":"2026-06-17T05:49:58.753","status":"Modified","description":"The go command may execute arbitrary code at build time when using cgo. This may occur when running \"go get\" on a malicious module, or when running any other command which builds untrusted code. This is can by triggered by linker flags, specified via a \"#cgo LDFLAGS\" directive. Flags containing embedded spaces are mishandled, allowing disallowed flags to be smuggled through the LDFLAGS sanitization by including them in the argument of another flag. This only affects usage of the gccgo compiler.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-74"],"references":["https://go.dev/cl/501224","https://go.dev/issue/60306","https://groups.google.com/g/golang-announce/c/q5135a9d924/m/j0ZoAJOHAwAJ","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NZ2O6YCO2IZMZJELQGZYR2WAUNEDLYV6/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XBS3IIK6ADV24C5ULQU55QLT2UE762ZX/"],"products":["fedoraproject:fedora","golang:go"],"source":"nvd","synced_at":"2026-10-19T21:38:24.161619714+00:00"},"epss":{"cve":"CVE-2023-29405","score":0.01714,"percentile":0.77395,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GO-2023-1842","url":"https://osv.dev/vulnerability/GO-2023-1842","summary":"Improper sanitization of LDFLAGS with embedded spaces in go command with cgo in cmd/go","modified":"2026-02-04T02:18:05.247471Z","packages":[{"ecosystem":"Go","name":"toolchain","purl":"pkg:golang/toolchain","ranges":["<1.19.10",">=1.20.0-0 <1.20.5"],"fixed":["1.19.10","1.20.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}