What’s Vulnerable › Vulnerabilities

CVE-2023-29402: Code injection via go command with cgo in cmd/go

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-08 · updated 2026-06-17
• Weakness: CWE-94

Description

The go command may generate unexpected code at build time when using cgo. This may result in unexpected behavior when running a go program which uses cgo. This may occur when running an untrusted module which contains directories with newline characters in their names. Modules which are retrieved using the go command, i.e. via "go get", are not affected (modules retrieved using GOPATH-mode, i.e. GO111MODULE=off, may be affected).

Affected products

• Fedoraproject Fedora: 38
• Go: before 1.19.10; from 1.20.0 before 1.20.5 — fixed in 1.19.10, 1.20.5

How to fix

Upgrade to a fixed version: Go 1.19.10, 1.20.5. Check the vendor advisory for mitigations.

References

• https://go.dev/cl/501226
• https://go.dev/issue/60167
• 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/
• https://pkg.go.dev/vuln/GO-2023-1839
• https://security.gentoo.org/glsa/202311-09
• https://go.dev/cl/501226
• https://go.dev/issue/60167
• 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/

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