CVE-2025-54594

Comprehensive Technical Analysis of CVE-2025-54594

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-54594

Description: The vulnerability affects the react-native-bottom-tabs library, specifically in versions 0.9.2 and below. The issue arises from the improper use of the pull_request_target event trigger in the github/workflows/release-canary.yml GitHub Actions workflow. This misconfiguration allows untrusted code from a forked pull request to execute in a privileged context, leading to arbitrary code execution.

CVSS Score: 9.1

Severity Evaluation: The CVSS score of 9.1 indicates a critical vulnerability. The high score is due to the potential for arbitrary code execution, which can result in the exfiltration of sensitive secrets, unauthorized code pushes to the repository, and the publication of compromised packages to the NPM registry.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Malicious Pull Request: An attacker can create a pull request containing a malicious preinstall script in the package.json file.
2. Triggering Vulnerable Workflow: The attacker can then trigger the vulnerable workflow by posting a specific comment (!canary) in the pull request.

Exploitation Methods:

1. Arbitrary Code Execution: The malicious script in the package.json file can execute arbitrary code in the context of the GitHub Actions workflow.
2. Secret Exfiltration: The attacker can exfiltrate sensitive secrets such as GITHUB_TOKEN and NPM_TOKEN.
3. Unauthorized Code Pushes: With access to the GITHUB_TOKEN, the attacker can push malicious code to the repository.
4. Compromised Package Publication: Using the NPM_TOKEN, the attacker can publish compromised packages to the NPM registry.

3. Affected Systems and Software Versions

Affected Software:

• react-native-bottom-tabs library versions 0.9.2 and below.

Affected Systems:

• Any system or repository using the affected versions of the react-native-bottom-tabs library.
• GitHub repositories with the vulnerable github/workflows/release-canary.yml workflow.

4. Recommended Mitigation Strategies

Immediate Actions:

1. Remove Vulnerable Workflow: Immediately remove or disable the github/workflows/release-canary.yml workflow.
2. Update Dependencies: Ensure that all dependencies are up-to-date and monitor for the release of a patched version of the react-native-bottom-tabs library.

Long-Term Mitigations:

1. Code Review: Implement strict code review processes for pull requests, especially those from forked repositories.
2. Workflow Security: Use secure event triggers and avoid using pull_request_target for sensitive workflows.
3. Secret Management: Rotate and securely manage sensitive secrets such as GITHUB_TOKEN and NPM_TOKEN.
4. Monitoring: Implement continuous monitoring for suspicious activities in the repository and workflows.

5. Impact on Cybersecurity Landscape

Broader Implications:

• Supply Chain Attacks: This vulnerability highlights the risks associated with supply chain attacks, where compromised dependencies can lead to widespread security issues.
• CI/CD Security: Emphasizes the importance of securing CI/CD pipelines and workflows, as they are critical components in modern software development.
• Open Source Security: Raises awareness about the security challenges in open-source projects and the need for robust security practices.

6. Technical Details for Security Professionals

Technical Analysis:

• Workflow Misconfiguration: The pull_request_target event trigger allows the workflow to run in the context of the base repository, even when triggered by a pull request from a forked repository. This can lead to the execution of untrusted code.
• Exploitation Steps:
  1. Create a pull request with a malicious package.json file containing a preinstall script.
  2. Trigger the workflow by posting a comment (!canary) in the pull request.
  3. The malicious script executes, allowing for arbitrary code execution and secret exfiltration.
• Remediation Commit: The remediation commit (9e1c9c61d742c435ac5e0901b7e0c9249b9fc70c) removes the vulnerable workflow, but a patched version of the library has not yet been released.

References:

• Post-Incident Security Measures
• Remediation Commit
• GitHub Security Advisory

Conclusion: CVE-2025-54594 is a critical vulnerability that underscores the importance of securing CI/CD workflows and managing dependencies carefully. Immediate mitigation steps include removing the vulnerable workflow and updating dependencies, while long-term strategies involve robust code review processes and secure secret management.