CVE-2026-11290 in Chrome
Summary
by MITRE • 06/05/2026
Integer overflow in WebView in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to cause a denial of service via a malicious file. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 06/05/2026
This vulnerability represents an integer overflow condition within the WebView component of Google Chrome on Android systems, specifically affecting versions prior to 149.0.7827.53. The flaw occurs when processing malicious files that trigger an integer overflow during memory allocation or buffer handling operations. Such conditions typically arise when a program attempts to perform arithmetic operations that exceed the maximum value that can be represented by the integer data type, causing the value to wrap around to a much smaller number. The Chromium security severity classification of Low indicates that while the vulnerability exists, it primarily manifests as a denial of service rather than a more critical exploit vector. The local attacker scenario suggests that malicious actors must already have access to the device or application environment to leverage this vulnerability, typically through file manipulation or application-specific attack vectors that involve WebView processing. This type of vulnerability falls under the CWE-190 category of Integer Overflow or Wraparound, which is classified as a common weakness in software security practices. The operational impact of this vulnerability manifests as a denial of service condition where the affected WebView component becomes unstable or crashes, preventing normal application functionality. When exploited, the integer overflow causes memory management errors that can lead to application crashes or system instability, effectively denying users access to the affected functionality. The vulnerability demonstrates how seemingly minor programming errors in memory handling can create significant operational disruptions in mobile browser environments. The technical exploitation requires careful crafting of malicious files that specifically trigger the integer overflow condition within the WebView's memory allocation routines. This typically involves manipulating file structures or data formats that the WebView processes, causing the integer arithmetic to exceed normal bounds and resulting in unexpected behavior. The vulnerability represents a classic example of how buffer overflow conditions can manifest in mobile application environments and highlights the importance of proper integer bounds checking in security-sensitive code. From an attack framework perspective, this vulnerability aligns with the ATT&CK technique T1059.007 for Command and Scripting Interpreter and T1499.004 for Endpoint Denial of Service, though it operates at a lower severity level than many other attack vectors. The fix implemented in version 149.0.7827.53 likely involved strengthening integer bounds checking and implementing proper overflow detection mechanisms within the WebView's memory management subsystem. Organizations should prioritize updating affected Android devices to ensure the patched version is deployed, as the vulnerability creates a persistent risk for local attackers who can leverage it to disrupt normal application functionality. The remediation process requires careful testing to ensure that the patch does not introduce compatibility issues with existing applications that depend on the WebView component. Security teams should monitor for potential exploitation attempts and implement proper network monitoring to detect unusual patterns that might indicate exploitation of this vulnerability. This case study illustrates the importance of thorough code review and security testing in mobile application environments where components like WebView handle diverse data inputs from multiple sources. The vulnerability also underscores the need for continuous security updates and patch management processes, particularly in mobile environments where users may not always have immediate access to the latest security patches.