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Vulnerability Details :

CVE-2025-61731

Summary
Assigner-Go
Assigner Org ID-1bb62c36-49e3-4200-9d77-64a1400537cc
Published At-28 Jan, 2026 | 19:30
Updated At-29 Jan, 2026 | 16:17
Rejected At-
Credits

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

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Go
Assigner Org ID:1bb62c36-49e3-4200-9d77-64a1400537cc
Published At:28 Jan, 2026 | 19:30
Updated At:29 Jan, 2026 | 16:17
Rejected At:
▼CVE Numbering Authority (CNA)
Arbitrary file write using cgo pkg-config directive in cmd/go

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.

Affected Products
Vendor
Go toolchain
Product
cmd/go
Collection URL
https://pkg.go.dev
Package Name
cmd/go
Default Status
unaffected
Versions
Affected
  • From 0 before 1.24.12 (semver)
  • From 1.25.0 before 1.25.6 (semver)
Problem Types
TypeCWE IDDescription
N/AN/ACWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Type: N/A
CWE ID: N/A
Description: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
RyotaK (https://ryotak.net) of GMO Flatt Security Inc.
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://go.dev/cl/736711
N/A
https://go.dev/issue/77100
N/A
https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc
N/A
https://pkg.go.dev/vuln/GO-2026-4339
N/A
Hyperlink: https://go.dev/cl/736711
Resource: N/A
Hyperlink: https://go.dev/issue/77100
Resource: N/A
Hyperlink: https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc
Resource: N/A
Hyperlink: https://pkg.go.dev/vuln/GO-2026-4339
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@golang.org
Published At:28 Jan, 2026 | 20:16
Updated At:06 Feb, 2026 | 18:43

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CPE Matches
Go
golang
>>go>>Versions before 1.24.12(exclusive)
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
Go
golang
>>go>>Versions from 1.25.0(inclusive) to 1.25.6(exclusive)
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
NVD-CWE-noinfoPrimarynvd@nist.gov
CWE ID: NVD-CWE-noinfo
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://go.dev/cl/736711security@golang.org
Patch
https://go.dev/issue/77100security@golang.org
Issue Tracking
https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUcsecurity@golang.org
Release Notes
Mailing List
https://pkg.go.dev/vuln/GO-2026-4339security@golang.org
Vendor Advisory
Hyperlink: https://go.dev/cl/736711
Source: security@golang.org
Resource:
Patch
Hyperlink: https://go.dev/issue/77100
Source: security@golang.org
Resource:
Issue Tracking
Hyperlink: https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc
Source: security@golang.org
Resource:
Release Notes
Mailing List
Hyperlink: https://pkg.go.dev/vuln/GO-2026-4339
Source: security@golang.org
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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Details not found