CVE-2026-48435 in Command-Line Tool
Summary
by MITRE • 08/11/2026
CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.
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Analysis
by VulDB Data Team • 08/11/2026
The CAI Content Credentials vulnerability represents a critical integer underflow condition that falls under the Common Weakness Enumeration category CWE-191, specifically involving signed integer underflow scenarios. This flaw occurs when an application performs arithmetic operations on signed integers where the result is less than the minimum value representable by the data type, causing the value to wrap around to the maximum negative value and potentially leading to unpredictable behavior.
The technical implementation of this vulnerability stems from improper input validation within the content credential processing logic where integer variables are decremented beyond their valid range without appropriate bounds checking. When an attacker manipulates input parameters that control integer counters or size calculations, the system fails to properly validate these values before performing arithmetic operations, resulting in the wraparound behavior that triggers the denial-of-service condition.
The operational impact of this vulnerability extends beyond simple service disruption as it represents a fundamental flaw in the application's robustness and error handling mechanisms. The absence of user interaction requirements makes this vulnerability particularly dangerous as attackers can exploit it remotely without needing to convince users to perform specific actions, effectively enabling automated exploitation across targeted systems. This characteristic aligns with ATT&CK technique T1499.004 for network denial-of-service attacks.
Applications utilizing CAI Content Credentials are at risk of complete service interruption when this vulnerability is successfully exploited, potentially affecting content management workflows and credential validation processes that depend on the system's stability. The integer underflow condition can cause stack corruption, memory access violations, or other runtime errors that force application termination and require manual intervention to restore normal operations.
Mitigation strategies should focus on implementing comprehensive input validation mechanisms that prevent integer underflows through proper boundary checking before arithmetic operations are performed. Developers must ensure that all integer variables are validated against their minimum and maximum representable values using appropriate conditional statements or built-in overflow detection functions. The implementation of defensive programming practices including explicit range checks, use of safe arithmetic libraries, and runtime monitoring for abnormal integer behavior provides effective protection against similar vulnerabilities.
Security teams should conduct thorough code reviews focusing on arithmetic operations involving signed integers, particularly in credential processing modules and input handling routines. Regular vulnerability scanning and penetration testing should include specific checks for integer overflow and underflow conditions to identify potential weaknesses before they can be exploited by malicious actors. The implementation of automated static analysis tools with specific rules for detecting integer underflow scenarios helps maintain application security throughout the development lifecycle.
Organizations implementing CAI Content Credentials must prioritize immediate patching of this vulnerability through coordinated updates from the vendor, while simultaneously monitoring network traffic for exploitation attempts. The lack of user interaction requirements makes continuous network monitoring essential for early detection and response to potential attacks. Additionally, implementing proper application error handling and graceful degradation mechanisms can help minimize the impact of successful exploitation attempts by ensuring that partial service disruption does not completely halt system functionality.
The vulnerability demonstrates a fundamental weakness in secure coding practices where basic arithmetic operations are not properly validated against data type constraints. This represents a classic example of how seemingly minor implementation flaws can have significant security implications, emphasizing the importance of adhering to secure coding standards and conducting regular security assessments to identify and remediate such vulnerabilities before they can be leveraged by threat actors in real-world scenarios.