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Affected Component
Analysis
golang-bootstrap
Exploitable
Name
CVE-2026-27140
Description
SWIG file names containing 'cgo' and well-crafted payloads could lead to code smuggling and arbitrary code execution at build time due to trust layer bypass.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://go.dev/cl/763768Release Notes
https://go.dev/issue/78335Issue Tracking
https://pkg.go.dev/vuln/GO-2026-4871Vendor Advisory
Analysis#
Vulnerability Ratings#
8.8
CVSSv31
8.8
CVSSv31
NaN
other
Others affected components#
Name
Project
Project Version
Version
Status
openwrt
openwrt-25.12
1.24.13-r1
Exploitable
openwrt
openwrt-25.12
1.26.4-r1
Not Affected
yocto
kirkstone
1.17.13
Exploitable
yocto
kirkstone
1.17.13
Exploitable
yocto
master
1.26.4
Not Affected
yocto
master
1.26.4
Not Affected
yocto
scarthgap
1.22.12
Patched
yocto
scarthgap
1.22.12
Exploitable
Resolved with patches#
go (yocto:scarthgap)
#
Title
Author
Resolve
1
[release-branch.go1.25] cmd/go: disallow cgo trust boundary
Neal Patel <nealpatel@google.com>
CVE-2026-27140