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CVE-2026-27140

Code execution vulnerability in SWIG code generation in cmd/go

Published: Apr 8, 2026Updated: Apr 16, 2026 Sources: CVE List NVD BDUCWE-863
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.5%
Top 59.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-863

Affected Products

cmd/goGo toolchain
Library
OSS Libraries / go
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Red Hat OpenShift Container PlatformRed Hat Inc.
SaaSSaaS Service
Cloud & SaaS / container-orchestration
Red Hat OpenShift VirtualizationRed Hat Inc.
On-prem
Cloud & SaaS / virtualization
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
go toolchainoss-projectUSOSS Librariesaka golang, go compiler toolchain, cmd/go
red hat inc.commercialUSOperating Systemsaka red hat
ооо «ред софт»commercialRUOperating Systemsaka red soft
and 2 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://go.dev/cl/763768
go.dev
https://go.dev/issue/78335
go.dev
https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU
groups.google.com
and 8 more references View all →

Timeline

Published
Apr 8, 2026
Last Updated
Apr 16, 2026

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