RCE in Golang Go
CVE-2023-39320
The go.mod toolchain directive, introduced in Go 1.21, can be leveraged to execute scripts and binaries relative to the root of the module when the "go" command was executed within the module. This applies to modules downloaded using the "go" command from the module proxy, as well as modules downloaded directly using VCS software.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.018 · change: +0.003
Affected products
- Golang Go
- Go Toolchain Cmd/go — versions 1.21.0-0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- go.dev/issue/62198 (Issue Tracking)
- go.dev/cl/526158 (Patch)
- groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJ (Release Notes)
- pkg.go.dev/vuln/GO-2023-2042 (Vendor Advisory)
- security.netapp.com/advisory/ntap-20231020-0004/ (Third Party Advisory)
- security.gentoo.org/glsa/202311-09
Frequently asked questions
- What is CVE-2023-39320?
- CVE-2023-39320 is a critical-severity vulnerability in Golang Go, classified under Code Injection. CVSS score: 9.8/10. Published 2023-09-08.
- How severe is CVE-2023-39320?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-39320 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.