CVE-2026-71360 in C2PA Tool
Summary
by MITRE • 08/25/2026
CAI Content Credentials is affected by an Uncontrolled Resource Consumption vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to exhaust system resources, resulting in an application denial-of-service condition. Exploitation of this issue does not require user interaction.
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Analysis
by VulDB Data Team • 08/25/2026
The CAI Content Credentials implementation contains a critical flaw classified as Uncontrolled Resource Consumption, which poses a significant risk to the stability and availability of systems relying on its functionality. This vulnerability stems from an inability within the software to properly limit or monitor the amount of system resources consumed during specific operations. When processing content credentials data structures, particularly those that are malformed or excessively large, the application fails to implement adequate safeguards against resource exhaustion. This lack of control allows a single input vector to trigger disproportionate consumption of CPU cycles, memory allocation, or I/O bandwidth relative to the size or complexity of the request. The core technical failure lies in the absence of strict validation limits on data volume and processing depth before these resources are committed by the system.
From an operational perspective, this vulnerability directly enables a denial-of-service condition without requiring any form of user interaction. An attacker can remotely craft specific requests containing oversized or deeply nested credential structures that force the application to allocate excessive memory or enter infinite loops during parsing and validation phases. Because no authentication or user action is required to trigger the exploit, the attack surface is broadened significantly, allowing for automated scanning and exploitation by malicious actors seeking to disrupt service availability. The resulting state leaves the affected system unresponsive as it struggles to manage the overwhelming resource demands, effectively halting legitimate operations and degrading performance for all users accessing the application.
This issue aligns with CWE-400, which describes Uncontrolled Resource Consumption, a category of weaknesses where software does not properly control the allocation and maintenance of limited resources such as memory, file descriptors, or CPU time. Furthermore, in the context of cyber attack frameworks, this vulnerability facilitates attacks categorized under MITRE ATT&CK technique T1499, Endpoint Denial of Service. By exploiting this flaw, adversaries can achieve their objective of disrupting service availability through resource exhaustion rather than attempting to compromise data confidentiality or integrity directly. The lack of input validation and rate limiting mechanisms exacerbates the severity, as there are no built-in controls to throttle requests from suspicious sources or reject payloads that exceed predefined thresholds for size or complexity.
To mitigate this vulnerability, developers must implement robust input validation strategies that strictly enforce limits on the size and depth of incoming content credential data structures. Implementing resource quotas and timeouts is essential to ensure that any single operation cannot monopolize system resources indefinitely. Additionally, integrating rate limiting controls can help detect and block anomalous traffic patterns indicative of exploitation attempts. Regular security testing focused on fuzzing input vectors with oversized or malformed data will help identify edge cases where the current validation logic fails. Updating to a patched version of CAI Content Credentials that addresses these resource management flaws is the primary remediation step, ensuring that the application can gracefully handle unexpected inputs without compromising system stability.