CVE-2023-29402
CWE-94Published: June 8, 2023· Updated: Jun 17, 2026
Official 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).
Risk Analysis
The Go command may generate unexpected code at build time when using cgo and processing untrusted modules with specific directory naming conventions. This can lead to unexpected program behavior.
No public exploit is known, and the vulnerability is not in the KEV catalog. It is remotely exploitable with low attack complexity.
Update the Go toolchain to the latest version and avoid using untrusted modules in GOPATH-mode.
Technical Analysis
CVE-2023-29402 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (15)
Quick Facts
Related CVEs (CWE-94)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-29402 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts