Is CVE-2026-27140 actively exploited?

CVE-2026-27140 has no public evidence of in-the-wild exploitation as of 2026-04-16.

What is the CVSS score for CVE-2026-27140?

CVE-2026-27140 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2026-27140?

Patch guidance is available from golang security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-27140.

Which products are affected by CVE-2026-27140?

2 products: golang go, golang go.

Fix CVE-2026-27140 - HIGH golang go

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 Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-863 · Incorrect Authorization

Metadata

Primary Vendor: GOLANG
Published: 4/8/2026
Last Modified: 4/16/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-27140

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary