CVE-2026-27140highCWE-641

Code execution vulnerability in SWIG code generation in cmd/go

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.8epss 0.7%

exploitation probability

0.7%top 50% of all CVEs

observed exploitation

nono source reports it

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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Go toolchain · cmd/go

References