CVE-2026-7935 Overview
CVE-2026-7935 is a user interface (UI) spoofing vulnerability in the Speech component of Google Chrome before version 148.0.7778.96. A remote attacker can craft a malicious HTML page that manipulates the browser's Speech UI to mislead users about the origin or context of displayed content. The flaw is classified under CWE-451: User Interface (UI) Misrepresentation of Critical Information and rated Medium severity by the Chromium project. Exploitation requires user interaction but no privileges, and the issue affects Chrome on Windows, macOS, and Linux.
Critical Impact
A remote attacker can use a crafted HTML page to spoof browser UI elements tied to the Speech feature, enabling phishing and social engineering scenarios that mislead users in Chrome versions prior to 148.0.7778.96.
Affected Products
- Google Chrome prior to 148.0.7778.96
- Google Chrome on Microsoft Windows
- Google Chrome on Apple macOS and Linux
Discovery Timeline
- 2026-05-06 - CVE-2026-7935 published to NVD
- 2026-05-06 - Last updated in NVD database
- May 2026 - Google releases stable channel update for desktop addressing the issue
Technical Details for CVE-2026-7935
Vulnerability Analysis
The vulnerability resides in Chrome's Speech implementation, which exposes Web Speech API capabilities including speech synthesis and recognition. An inappropriate implementation in this component allows attacker-controlled content to influence browser-rendered UI surfaces in a misleading way. The result is a UI spoofing condition mapped to [CWE-451], where security-relevant context shown to the user does not accurately reflect the underlying state.
The attack is delivered over the network via a crafted HTML page. User interaction is required, meaning a victim must visit or interact with the malicious page. Confidentiality and availability impacts are limited, while integrity is unaffected at the system level. The practical risk centers on deceiving users into trusting attacker content presented as legitimate browser UI.
Root Cause
The root cause is improper handling of UI rendering or focus within the Speech feature. Chromium's tracking entry for the issue is documented in the Chromium Issue Tracker entry 489624550. The component fails to enforce strict separation between web content and trusted browser chrome associated with speech prompts or indicators, allowing crafted pages to misrepresent state.
Attack Vector
An attacker hosts a crafted HTML page and lures a target to load it in a vulnerable Chrome build. The page invokes Speech-related interfaces and overlays or manipulates UI elements to misrepresent origin, permission state, or active speech activity. The victim, believing the spoofed UI is authentic, may disclose sensitive information or grant trust to attacker-controlled content. No authentication or elevated privileges are required on the attacker side.
No verified public proof-of-concept code is available for this issue. See the Chromium Issue Tracker entry for technical details once the entry is made public.
Detection Methods for CVE-2026-7935
Indicators of Compromise
- Chrome browser processes running versions earlier than 148.0.7778.96 across managed endpoints.
- Web traffic to untrusted domains immediately preceding user reports of unexpected speech prompts or microphone indicators.
- Browser telemetry showing Web Speech API invocations from low-reputation or newly registered domains.
Detection Strategies
- Inventory installed Chrome versions across the fleet and flag any build below 148.0.7778.96 as vulnerable.
- Correlate phishing reports with browser history entries that triggered Speech API usage to identify spoofing attempts.
- Monitor enterprise browser management consoles for users delaying or skipping the Chrome 148 stable channel update.
Monitoring Recommendations
- Ingest Chrome update and version telemetry into your SIEM or data lake to maintain continuous visibility into patch state.
- Track outbound DNS and proxy logs for connections to domains hosting suspicious HTML pages reported by users.
- Alert on user-submitted phishing reports that mention unexpected Chrome speech, microphone, or permission dialogs.
How to Mitigate CVE-2026-7935
Immediate Actions Required
- Update Google Chrome to version 148.0.7778.96 or later on Windows, macOS, and Linux endpoints.
- Force-restart Chrome after the update so the patched binary is loaded into memory.
- Verify enterprise update policies are not blocking or deferring the Chrome 148 stable channel rollout.
Patch Information
Google addressed CVE-2026-7935 in the Chrome stable channel update referenced in the Stable Channel Update for Desktop. Administrators should deploy Chrome 148.0.7778.96 or later. The fix is tracked in the Chromium Issue Tracker entry 489624550.
Workarounds
- Restrict use of Web Speech API features through enterprise Chrome policies until patching completes.
- Reinforce phishing awareness training so users scrutinize unexpected speech or microphone prompts.
- Use enterprise browser management to enforce automatic updates and prevent users from running outdated Chrome builds.
# Verify installed Chrome version on Linux/macOS endpoints
google-chrome --version
# Windows: query installed Chrome version from the registry
reg query "HKLM\Software\Google\Update\Clients\{8A69D345-D564-463C-AFF1-A69D9E530F96}" /v pv
# Confirm version is 148.0.7778.96 or later; if not, trigger update
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
