GO-2026-4871

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Source

https://pkg.go.dev/vuln/GO-2026-4871

Import Source

https://vuln.go.dev/ID/GO-2026-4871.json

JSON Data

https://api.osv.dev/v1/vulns/GO-2026-4871

Aliases

BIT-golang-2026-27140
CVE-2026-27140

Related

CGA-7mq7-fv93-8q6v

Published

2026-04-07T22:53:49Z

Modified

2026-04-13T08:27:25.964585875Z

Summary

Code execution vulnerability in SWIG code generation in cmd/go

Details

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.

Database specific

{
    "review_status": "REVIEWED",
    "url": "https://pkg.go.dev/vuln/GO-2026-4871"
}

References

Credits

- Juho Forsén of Mattermost

Affected packages

Go / toolchain

Package

Name: toolchain; View open source insights on deps.dev
Purl: pkg:golang/toolchain

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.25.9

Introduced

1.26.0-0

Fixed

1.26.2

Ecosystem specific

{
    "imports": [
        {
            "path": "cmd/go"
        }
    ]
}

Database specific

source

"https://vuln.go.dev/ID/GO-2026-4871.json"