CVE-2024-4147 is an access control vulnerability classified under CWE-1220 affecting lunary-ai/lunary version 1.2.13. The root cause is insufficient granularity in access control checks during prompt deletion operations. Specifically, the application verifies only whether a user has generic permission to delete prompts but neglects to confirm if the prompt belongs to the user's own project or organization. This logical flaw allows an attacker with legitimate deletion permissions within their own scope to manipulate prompt identifiers and delete prompts owned by other organizations. The vulnerability does not require authentication or user interaction, making it remotely exploitable over the network. The impact is primarily on availability, as unauthorized deletions cause legitimate users to lose access to their prompts, potentially disrupting workflows and causing data inconsistencies. While confidentiality and integrity are not directly compromised, the loss of data availability can have significant operational consequences. The CVSS 3.0 score is 7.5 (high), reflecting the ease of exploitation and the high impact on availability. No patches or known exploits are currently documented, indicating a window of exposure for affected users. Organizations relying on lunary-ai/lunary for AI prompt management should assess their exposure and implement controls to prevent unauthorized deletions.

For European organizations, the primary impact of this vulnerability is operational disruption due to unauthorized deletion of AI prompts shared within or across organizational boundaries. This can lead to loss of critical AI training or inference data, interrupting AI workflows and potentially causing delays or errors in AI-driven decision-making processes. Organizations in sectors relying heavily on AI collaboration platforms—such as finance, healthcare, and manufacturing—may experience degraded service availability and reduced productivity. Although confidentiality and integrity are not directly affected, the inability to access legitimate prompts can undermine trust in the platform and complicate compliance with data governance policies. Additionally, the cross-organizational nature of the flaw raises concerns about multi-tenant environments and data segregation, which are critical for compliance with European data protection regulations like GDPR. The lack of authentication requirements for exploitation increases the risk surface, especially in environments where internal users or external attackers can access the platform network. Overall, the vulnerability poses a significant risk to the continuity and reliability of AI services within European enterprises.

To mitigate CVE-2024-4147, European organizations using lunary-ai/lunary should: 1) Immediately audit current access control policies and verify prompt ownership validation mechanisms within the application. 2) Restrict deletion permissions to the minimum necessary users and roles, applying the principle of least privilege. 3) Implement network segmentation and access controls to limit exposure of the lunary-ai/lunary service to trusted users only. 4) Monitor and log prompt deletion activities to detect anomalous or unauthorized deletions promptly. 5) Engage with the vendor or community to obtain patches or updates that address the ownership validation flaw as soon as they become available. 6) Consider implementing compensating controls such as application-layer proxies or API gateways that enforce ownership checks externally until a patch is applied. 7) Educate users about the risks of ID manipulation and enforce secure coding practices if custom integrations exist. These targeted steps go beyond generic advice by focusing on ownership validation, permission minimization, and proactive monitoring tailored to this specific vulnerability.