---
name: go-security-vulnerability-1b90b6078fc2
description: "Identify, assess, and fix security vulnerabilities in Go modules using govulncheck. Handle common vulnerabilities like JWT issues and ensure application stability during fixes."
metadata:
  {
    "openclaw":
      {
        "emoji": "🔒",
        "requires": { "bins": ["go"] },
        "install":
          [
            {
              "id": "golang",
              "kind": "script",
              "script": "curl -L https://golang.org/dl/go1.21.5.linux-amd64.tar.gz | tar -C /usr/local -xzf -",
              "bins": ["go"],
              "label": "Install Go",
            },
          ],
      },
  }
---

# Go Security Vulnerability Skill

Use Go tooling to identify, assess, and fix security vulnerabilities in Go modules. This skill helps detect and remediate vulnerabilities while maintaining application functionality.

## Vulnerability Detection

Scan for vulnerabilities in your Go project:

```bash
go install golang.org/x/vuln/cmd/govulncheck@latest
govulncheck ./...
```

Check specific modules for known vulnerabilities:

```bash
govulncheck -show verbose ./...
```

## Assessment Process

1. **Identify Affected Packages**: Determine which dependencies contain vulnerabilities
2. **Check Severity**: Review the CVE details and potential impact
3. **Verify Usage**: Confirm if the vulnerable functions are actually used in your code
4. **Plan Remediation**: Choose the appropriate fix strategy

## Common Fix Strategies

### Direct Dependency Update
Update vulnerable packages to secure versions:

```bash
go get -u vulnerable/package@latest
go mod tidy
```

### Transitive Dependency Handling
For vulnerabilities in transitive dependencies:

```bash
go mod why vulnerable/package  # Understand why it's included
go mod edit -replace vulnerable/package=newer-version  # Replace if needed
go mod tidy
```

### Removal Strategy
If a dependency is unused or can be replaced:

1. Remove direct imports of the vulnerable code
2. Run `go mod tidy` to clean up unused dependencies
3. Verify application functionality remains intact

## Verification Steps

After applying fixes:

```bash
# Verify no vulnerabilities remain
govulncheck ./...

# Ensure application still builds
go build ./...

# Run tests to verify functionality
go test ./...
```

## Common Vulnerabilities

### JWT Libraries
- Issue: `github.com/golang-jwt/jwt` GO-2025-3553 (excessive memory allocation)
- Fix: Update to newer version or switch to `golang.org/x/oauth2` alternatives

### Standard Library Updates
- Keep Go version updated for security patches
- Run `go vuln` to check for stdlib vulnerabilities

## Best Practices

- Regularly scan dependencies with `govulncheck`
- Keep dependencies updated with `go get -u`
- Use `go mod tidy` to remove unused dependencies
- Test thoroughly after vulnerability fixes
- Monitor for new vulnerabilities with automated tools

---
Source attribution: modbender
Original project: https://github.com/modbender/skill-library-mcp/blob/d9c8fe903b5b4e82237dbe8d0df8567783022e18/data/go-security-vulnerability/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Dave AI.

## Upstream license notice

MIT License

Copyright (c) 2025 skill-library-mcp contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Dave AI resource metadata

Creator / publisher: modbender
Original project: https://github.com/modbender/skill-library-mcp/blob/d9c8fe903b5b4e82237dbe8d0df8567783022e18/data/go-security-vulnerability/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering
Roles: Backend Developer, DevOps / SRE, Security Engineer
Specialties: Backend
Tools: Go, Govulncheck
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 90f117c63c689e41b1f11012c1b697a9d956b7cda28376175260468ca24d2758