CVE-2026-27140

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://go.dev/cl/763768	Release Notes
https://go.dev/issue/78335	Issue Tracking
https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU	Release Notes Mailing List
https://pkg.go.dev/vuln/GO-2026-4871	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:golang:go::::::::
	cpe:2.3:a:golang:go::::::::

History

16 Apr 2026, 19:26

Type	Values Removed	Values Added
CWE		CWE-863
First Time		Golang go Golang
CPE		cpe:2.3:a:golang:go::::::::
References	~~() https://go.dev/cl/763768 -~~	() https://go.dev/cl/763768 - Release Notes
References	~~() https://go.dev/issue/78335 -~~	() https://go.dev/issue/78335 - Issue Tracking
References	~~() https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU -~~	() https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU - Release Notes, Mailing List
References	~~() https://pkg.go.dev/vuln/GO-2026-4871 -~~	() https://pkg.go.dev/vuln/GO-2026-4871 - Vendor Advisory

13 Apr 2026, 14:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8

08 Apr 2026, 02:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-08 02:16

Updated : 2026-04-16 19:26

NVD link : CVE-2026-27140

Mitre link : CVE-2026-27140

CVE.ORG link : CVE-2026-27140

JSON object : View

Products Affected

golang

go

CWE

CWE-863

Incorrect Authorization

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