CVE-2024-39011 is a prototype pollution vulnerability identified in chargeover redoc version 2.0.9-rc.69. Prototype pollution occurs when an attacker can inject or modify properties on a JavaScript object's prototype, which can then affect all objects inheriting from that prototype. In this case, the vulnerability exists in the mergeObjects function, which is responsible for merging object properties. An attacker can exploit this flaw remotely over the network without any authentication or user interaction, by sending crafted input that manipulates the prototype chain. This can lead to arbitrary code execution, allowing the attacker to run malicious code within the context of the application, or cause a denial of service by corrupting application state or triggering crashes. The vulnerability is classified under CWE-1321, which relates to improper handling of prototype pollution. The CVSS v3.1 score of 9.8 reflects the critical nature of this vulnerability, with high impact on confidentiality, integrity, and availability. Although no known exploits have been reported in the wild yet, the ease of exploitation and severity make it a significant threat. No official patches have been released at the time of publication, increasing the urgency for defensive measures.

The impact of CVE-2024-39011 is severe for organizations using chargeover redoc v2.0.9-rc.69. Successful exploitation can lead to full compromise of the affected application, including arbitrary code execution, which could allow attackers to escalate privileges, move laterally within networks, or exfiltrate sensitive data. Denial of service conditions can disrupt business operations and degrade service availability. Since the vulnerability requires no authentication or user interaction, it can be exploited by remote attackers at scale, increasing the risk of widespread attacks. Organizations relying on this software for API documentation or developer portals may face reputational damage, regulatory consequences, and operational downtime. The lack of patches and known exploits in the wild suggests a window of exposure that must be managed proactively.

1. Immediately audit and inventory all instances of chargeover redoc v2.0.9-rc.69 within your environment. 2. Restrict network exposure of affected services by implementing firewall rules or network segmentation to limit access to trusted users only. 3. Employ runtime application self-protection (RASP) or web application firewalls (WAF) with custom rules to detect and block suspicious payloads attempting prototype pollution attacks. 4. Monitor application logs and network traffic for anomalous behavior indicative of prototype pollution exploitation attempts, such as unusual object property modifications or crashes. 5. Engage with the software vendor or community to obtain patches or updates as soon as they become available and prioritize their deployment. 6. Consider temporary mitigations such as input validation and sanitization around the mergeObjects function if source code access is possible. 7. Educate development teams about prototype pollution risks and secure coding practices to prevent similar vulnerabilities in future releases.