We release patches for security vulnerabilities. The following versions of Accordion are currently being supported with security updates:

The Accordion team takes security bugs seriously. We appreciate your efforts to responsibly disclose your findings and will make every effort to acknowledge your contributions.

Please do not report security vulnerabilities through public GitHub issues.

Instead, please report them via one of the following methods:

1. Email: Send an email to the maintainer at [security contact from GitHub profile]
2. GitHub Security Advisory: Use the GitHub Security Advisory feature

Please include the following information in your report:

• Type of issue (e.g., buffer overflow, SQL injection, cross-site scripting, etc.)
• Full paths of source file(s) related to the manifestation of the issue
• The location of the affected source code (tag/branch/commit or direct URL)
• Any special configuration required to reproduce the issue
• Step-by-step instructions to reproduce the issue
• Proof-of-concept or exploit code (if possible)
• Impact of the issue, including how an attacker might exploit it

After you have submitted a vulnerability report, you can expect:

• Acknowledgment: We will acknowledge receipt of your vulnerability report within 48 hours
• Communication: We will send you regular updates about our progress
• Timeline: We aim to patch critical vulnerabilities within 7 days and moderate vulnerabilities within 30 days
• Credit: If you desire, we will publicly acknowledge your responsible disclosure (unless you prefer to remain anonymous)

Accordion uses OWASP Dependency-Check to scan for known vulnerabilities in dependencies:

# Run security scan
mvn dependency-check:check

# Security scan fails build if CVSS score ≥ 7.0

When using Accordion in your applications, follow these security best practices:

Always validate and sanitize input parameters before creating Action configurations:

// ❌ BAD: No validation
ActionConfig apiAction = ActionConfig.builder()
                .actionParams(ApiParameter.builder()
                        .url(userInput)  // Potentially malicious URL
                        .build())
                .build();

// ✅ GOOD: Validate input
public void createApiAction(String userInput) {
    if (!isValidUrl(userInput)) {
        throw new IllegalArgumentException("Invalid URL format");
    }
    if (!isAllowedDomain(userInput)) {
        throw new SecurityException("URL domain not in allowlist");
    }

    ActionConfig apiAction = ActionConfig.builder()
            .actionParams(ApiParameter.builder()
                    .url(userInput)
                    .build())
            .build();
}

When using ScriptAction or ShellAction, be extremely cautious with user input:

// ❌ BAD: Command injection risk
ScriptParameter.builder()
    .

script("echo "+userInput)
    .

build();

// ✅ GOOD: Use parameterized approach or strict validation
ScriptParameter.

builder()
    .

script("echo ${safeInput}")
    .

build();

Recommendation: Avoid using ScriptAction and ShellAction with untrusted input. If necessary:

• Use allowlists for permitted commands
• Implement strict input validation
• Run in sandboxed environments
• Apply principle of least privilege

Never log or expose sensitive information:

// ❌ BAD: Logging sensitive data
log.info("API request with token: {}",apiToken);

// ✅ GOOD: Mask or omit sensitive data
log.

info("API request initiated for endpoint: {}",endpoint);
log.

debug("Request headers: {}",sanitizeHeaders(headers));

private Map<String, String> sanitizeHeaders(Map<String, String> headers) {
    return headers.entrySet().stream()
            .collect(Collectors.toMap(
                    Map.Entry::getKey,
                    e -> e.getKey().toLowerCase().contains("auth")
                            ? "***REDACTED***"
                            : e.getValue()
            ));
}

Always use HTTPS and validate certificates:

// ✅ GOOD: Enforce HTTPS
ApiParameter.builder()
    .

url(url)
    .

validateCertificate(true)  // Ensure certificate validation
    .

timeout(30000)
    .

build();

Implement timeouts and resource limits to prevent denial of service:

// ✅ GOOD: Set appropriate timeouts
ActionConfig.builder()
    .

timeout(Duration.ofSeconds(30))
        .

retryPolicy(RetryPolicy.builder()
        .

maxRetries(3)
        .

backoff(Duration.ofSeconds(2))
        .

build())
        .

build();

Don't expose internal system details in error messages:

// ❌ BAD: Exposing internal details
catch(Exception e){
        throw new

ActionException("Database connection failed: "+
                        "jdbc:mysql://internal-db.company.local:3306/app",e);
}

// ✅ GOOD: Generic error message
        catch(
Exception e){
        log.

error("Database operation failed",e);
    throw new

ActionException("Database operation failed. Please contact support.");
}

Keep Accordion and its dependencies up to date:

<!-- Check for dependency updates -->
<dependency>
    <groupId>chat.octet</groupId>
    <artifactId>accordion</artifactId>
    <version>LATEST_STABLE_VERSION</version>
</dependency>

Monitor the following for security updates:

• Accordion Releases
• Accordion Security Advisories
• OWASP Dependency-Check reports

Regularly audit transitive dependencies:

# View dependency tree
mvn dependency:tree

# Check for updates
mvn versions:display-dependency-updates

# Run security scan
mvn dependency-check:check

The Accordion project uses GitHub Actions for CI/CD. Security measures include:

1. Dependency Scanning: Automated OWASP dependency checks
2. Code Quality: Static analysis with Checkstyle, SpotBugs, PMD
3. Secret Scanning: GitHub's secret scanning enabled
4. Dependabot: Automated dependency updates
5. Branch Protection: Required reviews and status checks on main branch

# .github/workflows/security-scan.yml
- name: OWASP Dependency Check
  run: mvn dependency-check:check

- name: Upload Security Report
  if: failure()
  uses: actions/upload-artifact@v3
  with:
    name: dependency-check-report
    path: target/dependency-check-report.html

Risk Level: High

Script and Shell actions can execute arbitrary code. Use with extreme caution:

• Never pass unsanitized user input to these actions
• Run in isolated environments when possible
• Apply strict allowlists for permitted operations
• Use dedicated service accounts with minimal privileges

Risk Level: Medium

API actions make HTTP requests to external services:

• Validate URLs against allowlists
• Use HTTPS only
• Implement request timeouts
• Handle authentication tokens securely
• Validate and sanitize response data

Risk Level: Medium

Email actions may expose sensitive information:

• Validate recipient addresses
• Sanitize email content to prevent injection
• Use secure SMTP connections (TLS/SSL)
• Store credentials securely (environment variables or secret management)

Risk Level: Medium

Accordion uses Jackson for JSON serialization:

• Keep Jackson dependencies updated
• Avoid deserializing untrusted data
• Use explicit type references when possible
• Enable default typing only when absolutely necessary

# Run all static analysis tools
mvn verify

# Individual tools
mvn checkstyle:check
mvn spotbugs:check
mvn pmd:check

# Run OWASP Dependency Check
mvn dependency-check:check

# View report
open target/dependency-check-report.html

Maintain high test coverage to catch potential security issues:

# Run tests with coverage
mvn test

# Check coverage thresholds
mvn jacoco:check

# View coverage report
open target/site/jacoco/index.html

Before submitting code:

• Input validation implemented for all external data
• No hardcoded secrets or credentials
• Sensitive data properly masked in logs
• Error messages don't expose internal details
• Dependencies are up to date and scanned
• Unit tests cover security-related code paths
• Code reviewed by at least one maintainer
• Static analysis tools pass without warnings
• OWASP dependency check passes (CVSS < 7.0)

• OWASP Dependency-Check
• SpotBugs
• PMD
• Checkstyle

• OWASP Top Ten
• CWE Top 25
• NIST NVD
• GitHub Security Advisories

When we receive a security bug report, we will:

1. Confirm the problem and determine affected versions
2. Audit code to find similar problems
3. Prepare fixes for all supported versions
4. Release patches as soon as possible
5. Publish a security advisory on GitHub

We appreciate the following security researchers who have responsibly disclosed vulnerabilities:

No reports received yet.

Last Updated: 2025-01-15

For questions about this policy, please open an issue or contact the maintainers.