cmd-go up to 1.25.8/1.26.1 on Go SWIG File Parser trust boundary violation

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in cmd-go up to 1.25.8/1.26.1 on Go. This issue affects some unknown processing of the component SWIG File Parser. Executing a manipulation can lead to trust boundary violation. This vulnerability appears as CVE-2026-27140. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in cmd-go up to 1.25.8/1.26.1 on Go and classified as critical. This vulnerability affects some unknown functionality of the component SWIG File Parser. The manipulation with an unknown input leads to a trust boundary violation vulnerability. The CWE definition for the vulnerability is CWE-501. The product mixes trusted and untrusted data in the same data structure or structured message. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

This vulnerability was named CVE-2026-27140 since 02/17/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 305651 (Linux Distros Unpatched Vulnerability : CVE-2026-27140), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.25.9 or 1.26.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (305651) and CERT Bund (WID-SEC-2026-1006). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Red Hat Ansible Automation Platform
  • Google Container-Optimized OS
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • Red Hat OpenShift
  • SUSE openSUSE
  • RESF Rocky Linux
  • Red Hat OpenStack
  • Microsoft Azure Linux
  • Golang Go
  • Open Source CoreDNS
  • IBM Business Automation Workflow
  • Open Source Fleet
  • Splunk Splunk Enterprise

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔒

ADP CISA Base Score: 8.8
ADP CISA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Trust boundary violation
CWE: CWE-501
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 305651
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-27140

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: cmd-go 1.25.9/1.26.2

Timelineinfo

02/17/2026 CVE reserved
04/08/2026 +49 days Advisory disclosed
04/08/2026 +0 days VulDB entry created
07/16/2026 +99 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CVE: CVE-2026-27140 (🔒)
GCVE (CVE): GCVE-0-2026-27140
GCVE (VulDB): GCVE-100-356008
CERT Bund: WID-SEC-2026-1006 - Golang Go: Mehrere Schwachstellen

Entryinfo

Created: 04/08/2026 08:01
Updated: 07/16/2026 20:28
Changes: 04/08/2026 08:01 (52), 04/09/2026 05:18 (7), 04/09/2026 08:45 (2), 04/29/2026 00:41 (1), 05/04/2026 01:00 (1), 06/01/2026 17:40 (1), 07/02/2026 04:06 (20), 07/16/2026 20:28 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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