GO-2026-4339

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Source

https://pkg.go.dev/vuln/GO-2026-4339

Import Source

https://vuln.go.dev/ID/GO-2026-4339.json

JSON Data

https://api.test.osv.dev/v1/vulns/GO-2026-4339

Aliases

BIT-golang-2025-61731
CVE-2025-61731

Related

CGA-qf8r-r99j-68mj

Published

2026-01-28T19:07:59Z

Modified

2026-01-31T20:26:04.867961Z

Summary

Arbitrary file write using cgo pkg-config directive in cmd/go

Details

Building a malicious file with cmd/go can cause can cause a write to an attacker-controlled file with partial control of the file content.

The "#cgo pkg-config:" directive in a Go source file provides command-line arguments to provide to the Go pkg-config command. An attacker can provide a "--log-file" argument to this directive, causing pkg-config to write to an attacker-controlled location.

Database specific

{
    "url": "https://pkg.go.dev/vuln/GO-2026-4339",
    "review_status": "REVIEWED"
}

References

Credits

- RyotaK (https://ryotak.net) of GMO Flatt Security Inc.

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

1.24.12

Introduced

1.25.0

Fixed

1.25.6

Ecosystem specific

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

Database specific

source

"https://vuln.go.dev/ID/GO-2026-4339.json"