{"cve":"CVE-2023-29404","nvd":{"published":"2023-06-08T21:15:17.077","modified":"2026-06-17T05:49:58.593","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. The arguments for a number of flags which are non-optional are incorrectly considered optional, allowing disallowed flags to be smuggled through the LDFLAGS sanitization. This affects usage of both the gc and gccgo compilers.","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-94"],"references":["https://go.dev/cl/501225","https://go.dev/issue/60305","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-2023-29404","score":0.01822,"percentile":0.78763,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GO-2023-1841","url":"https://osv.dev/vulnerability/GO-2023-1841","summary":"Improper handling of non-optional LDFLAGS in go command with cgo in cmd/go","modified":"2026-02-04T03:02:08.358489Z","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."]}