CVE-2026-3465 in App
Summary
by MITRE • 03/03/2026
A vulnerability was determined in Tuya App and SDK 24.07.11 on Android. Affected by this vulnerability is an unknown functionality of the component JSON Data Point Handler. This manipulation of the argument cruise_time causes denial of service. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been publicly disclosed and may be utilized. There is ongoing doubt regarding the real existence of this vulnerability. The vendor disagrees with the conclusion of the finding: "The described vulnerability fails to prove its feasibility or exploitability by attackers. The issue essentially does not constitute a security vulnerability, aligning more closely with abnormal product functionality." These considerations are properly reflected within the CVSS vector.
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Analysis
by VulDB Data Team • 03/04/2026
The vulnerability identified as CVE-2026-3465 resides within the Tuya App and SDK version 24.07.11 on Android platforms, specifically targeting an unknown functionality within the JSON Data Point Handler component. This flaw manifests through manipulation of the cruise_time argument which ultimately leads to a denial of service condition. The vulnerability presents a remote attack surface, meaning malicious actors can potentially exploit this weakness without requiring physical access to the target device. The attack complexity is assessed as high, indicating that successful exploitation requires significant technical expertise and resources, though the public disclosure of exploitation methods suggests that determined attackers may have developed working payloads. The CVSS vector reflects the vendor's position that this issue may not represent a true security vulnerability, instead characterizing it as abnormal product functionality rather than a genuine security flaw.
The technical implementation of this vulnerability involves the JSON Data Point Handler component which processes data points from IoT devices through the Tuya ecosystem. When the cruise_time parameter is manipulated, the system appears to fail in proper input validation or error handling, leading to a denial of service condition that can disrupt normal application functionality. This behavior aligns with CWE-20: Improper Input Validation, where inadequate validation of input parameters leads to unexpected system behavior. The vulnerability demonstrates characteristics consistent with CWE-400: Uncontrolled Resource Consumption, as the malformed cruise_time argument could potentially cause the application to consume excessive resources or enter an unstable state. The attack vector classification suggests this vulnerability can be triggered through network-based communication with the affected Tuya applications.
The operational impact of CVE-2026-3465 extends beyond simple service disruption to potentially compromise the reliability of IoT device management within the Tuya ecosystem. Remote exploitation capabilities mean that attackers could target users' smart home devices or commercial IoT deployments without physical access, potentially causing widespread disruption to connected services. The high attack complexity suggests that this vulnerability may not be widely exploited by automated malware campaigns but could be weaponized by sophisticated threat actors targeting specific Tuya-based deployments. Organizations relying on Tuya's IoT infrastructure for smart building management, home automation, or industrial monitoring systems could face operational interruptions if this vulnerability is successfully exploited. The vendor's disagreement with the vulnerability assessment raises questions about the true scope and exploitability of the issue, though the CVSS vector reflects this uncertainty by assigning a moderate severity rating.
Mitigation strategies for CVE-2026-3465 should focus on input validation improvements within the JSON Data Point Handler component, implementing proper parameter sanitization for cruise_time values, and enhancing error handling mechanisms to prevent denial of service conditions. Organizations should consider implementing network segmentation to limit access to affected Tuya applications, deploying intrusion detection systems to monitor for exploitation attempts, and maintaining updated threat intelligence regarding publicly disclosed attack methods. The vendor's position that this represents abnormal functionality rather than a security vulnerability suggests that proper configuration and monitoring may be sufficient mitigation measures, though organizations should remain vigilant about potential exploitation. Security teams should also consider conducting vulnerability assessments of their Tuya-based deployments to identify potential impact and ensure proper network controls are in place to prevent unauthorized access to IoT device management interfaces. The ongoing uncertainty regarding the vulnerability's real existence underscores the importance of maintaining situational awareness and having incident response procedures in place for potential exploitation attempts.