CVE-2026-17800 in Chrome
Summary
by MITRE • 07/30/2026
Inappropriate implementation in MediaRecording in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability resides within the MediaRecording component of Google Chrome, representing a classic case of improper input validation and memory handling that could expose sensitive data to remote attackers. The flaw manifests when Chrome processes specially crafted HTML pages that trigger media recording functionality, allowing malicious actors to potentially extract information from process memory through memory disclosure techniques. The vulnerability affects versions prior to 151.0.7922.72, indicating it was present in a significant portion of Chrome's release cycle and likely exploited in the wild before remediation.
The technical implementation issue stems from inadequate memory management within the MediaRecording subsystem where Chrome fails to properly sanitize or validate input parameters during media capture operations. When processing malicious HTML content, the system does not adequately protect against information disclosure attacks that could leverage buffer overflows, uninitialized memory reads, or improper memory deallocation patterns. This type of vulnerability typically falls under CWE-200, Information Exposure, and represents a failure in proper memory access controls within browser components.
The operational impact of this vulnerability extends beyond simple information leakage to potentially enable more sophisticated attacks. Remote attackers could use this weakness to extract sensitive data such as cryptographic keys, session tokens, user credentials, or other confidential information stored in memory regions that should remain protected. The medium severity classification indicates that while exploitation requires specific conditions and may not provide complete system compromise, it creates a significant attack surface for threat actors who can leverage the information disclosure for further exploitation attempts. This weakness aligns with ATT&CK technique T1059.007 for command and scripting interpreter, where attackers might use memory dumps to extract credentials or other sensitive data.
Mitigation strategies should focus on immediate patch deployment to the affected Chrome versions, ensuring all users update to 151.0.7922.72 or later releases that contain the necessary fixes. Organizations should also implement network monitoring to detect unusual traffic patterns that might indicate exploitation attempts, particularly around media processing components and memory access operations. Browser hardening measures including sandboxing enhancements and strict Content Security Policies can provide additional defense layers. Security teams should monitor for any reported exploitation attempts in the wild and consider implementing web application firewalls that can detect and block malicious HTML content targeting this specific vulnerability class. The fix likely involves proper input validation, memory boundary checking, and ensuring that media recording components properly isolate sensitive data from potentially malicious input streams.