NocoDB is software for building databases as spreadsheets. Prior to version 0.301.0, an authenticated user with org-level-creator permissions can exploit prototype pollution in the `/api/v2/meta/connection/test` endpoint, causing all database write operations to fail application-wide until server restart. While the pollution technically bypasses SUPER_ADMIN authorization checks, no practical privileged actions can be performed because database operations fail immediately after pollution. Version 0.301.0 patches the issue.
The CVSS score for this vulnerability is 4.9, indicating a medium severity level. This score reflects the low attack complexity and the requirement for high privileges. The attack vector is network-based, meaning that exploitation can happen remotely. Organizations must understand the implications of this vulnerability and take action to mitigate any potential risks.
Risk to organizations includes potential denial of service due to database write failures, which can significantly impact operations. Given the nature of the vulnerability, organizations should prioritize patching immediately.
Currently, there are no known exploits or public proof of concepts available for this vulnerability. However, the potential for exploitation exists, and organizations using NocoDB should act swiftly.
Organizations should address this vulnerability in their priority patch cycle to ensure that their systems remain secure and functional.
Vulnerability Details
The vulnerability allows authenticated users with org-level-creator permissions to exploit prototype pollution in the `/api/v2/meta/connection/test` endpoint. It can lead to application-wide failure of database write operations until the server is restarted. The vulnerability has been assigned CWE-1321 classification.
The CVSS score of 4.9 indicates a medium severity level, with impacts on availability but none on confidentiality or integrity. The affected product is NocoDB, and the issue has been patched in version 0.301.0.
Technical Analysis
The root cause of this vulnerability lies in prototype pollution, which allows an attacker to manipulate the structure of an object at runtime. This manipulation can cause severe disruptions in the application's functionality, particularly affecting write operations.
The attack vector is network-based, which means that an attacker needs to send specially crafted requests to the vulnerable endpoint. The attack complexity is low, requiring high privileges, but no user interaction is needed.
The availability impact is high, as all database write operations will fail until the server is restarted, effectively denying service to legitimate users.
Risk & Impact Analysis
Organizations deploying NocoDB need to be aware of the potential disruption caused by this vulnerability. A successful exploitation could lead to a complete halt of database operations, affecting user access and overall service functionality.
The urgency for remediation is high, given the CVSS score and the potential impact on operations. Organizations should prioritize addressing this vulnerability in their patch cycles to mitigate the risk of operational downtime and maintain service continuity.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of NocoDB prior to version 0.301.0 are affected by this vulnerability. Organizations using earlier versions should upgrade to the patched version to ensure security.
Mitigation & Remediation
The primary remediation step is to update NocoDB to version 0.301.0 or later. In case the update is not immediately feasible, organizations may consider implementing network controls to restrict access to the vulnerable endpoint. Continuous monitoring of the application for unusual activity is also recommended.
Detection Guidance
Organizations should monitor logs for any unusual or unauthorized access attempts to the `/api/v2/meta/connection/test` endpoint. Additionally, behavioral anomalies indicating potential exploitation should be flagged for further investigation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-24766 lies in its demonstration of how prototype pollution can disrupt application functionality. Security teams should learn from this incident and implement robust input validation to prevent similar vulnerabilities.
For more in-depth strategies on securing applications, organizations can refer to resources on security testing best practices and consider regular penetration testing as a proactive measure.
Additionally, the emergence of such vulnerabilities highlights the need for a vulnerability management program that continuously assesses and mitigates risks.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)