CVE-2026-27140

HIGH

Code execution vulnerability in SWIG code generation in cmd/go

Title source: cna
STIX 2.1

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.

References (4)

Scores

CVSS v3 8.8
EPSS 0.0001
EPSS Percentile 2.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-863
Status published
Products (3)
Go toolchain/cmd/go < 1.25.9
Go toolchain/cmd/go 1.26.0-0 - 1.26.2
golang/go < 1.25.9
Published Apr 08, 2026
Tracked Since Apr 08, 2026