EUVD-2025-23669

Comprehensive Technical Analysis of EUVD-2025-23669

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the EUVD entry EUVD-2025-23669 pertains to the react-native-bottom-tabs library, specifically affecting versions 0.9.2 and below. The issue arises from the improper use of the pull_request_target event trigger in the GitHub Actions workflow github/workflows/release-canary.yml. This misconfiguration allows untrusted code from a forked pull request to execute in a privileged context, leading to arbitrary code execution.

Severity Evaluation:

• CVSS Base Score: 9.1 (Critical)
• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

The high base score indicates a critical vulnerability due to the potential for unauthorized access to sensitive information and the ability to execute arbitrary code. The attack vector is network-based (AV:N), requires low complexity (AC:L), and does not need user interaction (UI:N) or privileged access (PR:N). The impact on confidentiality and integrity is high (C:H/I:H), while the impact on availability is none (A:N).

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 Workflow: The attacker can then trigger the vulnerable workflow by posting a specific comment (!canary) in the pull request.

Exploitation Methods:

• Arbitrary Code Execution: The malicious script can execute arbitrary code in the context of the GitHub Actions runner.
• Exfiltration of Secrets: The attacker can exfiltrate sensitive secrets such as GITHUB_TOKEN and NPM_TOKEN.
• Code Injection: The attacker can push malicious code to the repository or 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 application that uses the vulnerable versions of the react-native-bottom-tabs library.
• GitHub repositories that have enabled the github/workflows/release-canary.yml workflow.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Remove Vulnerable Workflow: Immediately remove or disable the github/workflows/release-canary.yml workflow from the repository.
• Update Dependencies: Ensure that all dependencies are up-to-date and monitor for any updates to the react-native-bottom-tabs library.

Long-Term Mitigation:

• Code Review: Implement strict code review processes for pull requests, especially those from forked repositories.
• Secure Workflows: Use secure GitHub Actions workflows that do not allow untrusted code execution.
• Secret Management: Use secure methods for managing and storing secrets, such as GitHub Secrets or environment variables.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and developers using the react-native-bottom-tabs library. The potential for arbitrary code execution and exfiltration of sensitive information can lead to data breaches, unauthorized access, and the distribution of malicious software. This underscores the importance of secure coding practices and the need for continuous monitoring and updating of dependencies.

6. Technical Details for Security Professionals

Vulnerability Details:

• Workflow Misconfiguration: The pull_request_target event trigger in the github/workflows/release-canary.yml workflow allows untrusted code execution.
• Malicious Script: The attacker can include a malicious preinstall script in the package.json file to execute arbitrary code.
• Trigger Mechanism: The workflow is triggered by posting a specific comment (!canary) in the pull request.

Remediation Commit:

• A remediation commit (9e1c9c61d742c435ac5e0901b7e0c9249b9fc70c) has been made to remove the vulnerable workflow, but a version with this fix has yet to be released.

References:

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

Aliases:

• CVE-2025-54594

Assigner:

• GitHub_M

ENISA IDs:

• Product: react-native-bottom-tabs (versions ≤ 0.9.2)
• Vendor: callstackincubator

By addressing this vulnerability promptly and implementing robust security measures, organizations can mitigate the risks associated with this critical issue and enhance their overall cybersecurity posture.