PatchSiren cyber security CVE debrief
CVE-2026-10004 Google CVE debrief
CVE-2026-10004 is a high-severity UI spoofing vulnerability in Google Chrome's Passwords feature, affecting versions prior to 148.0.7778.216. The flaw stems from insufficient validation of untrusted input (CWE-20), allowing a remote attacker to craft a malicious HTML page that can spoof the browser's password interface. This could potentially deceive users into entering credentials into attacker-controlled fields disguised as legitimate Chrome password prompts. The vulnerability was disclosed by Google on May 28, 2026, alongside the stable channel update that resolves the issue. No known exploitation in ransomware campaigns has been reported, and the vulnerability has not been added to CISA's Known Exploited Vulnerabilities catalog.
- Vendor
- Product
- Chrome
- CVSS
- MEDIUM 6.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-28
- Original CVE updated
- 2026-05-29
- Advisory published
- 2026-05-28
- Advisory updated
- 2026-05-29
Who should care
Organizations with Chrome deployments, security teams managing browser security posture, identity and access management teams concerned with credential phishing vectors, and end users who rely on Chrome's built-in password manager.
Technical summary
Insufficient input validation in Chrome's Passwords component allows crafted HTML pages to spoof the browser's password interface, potentially capturing user credentials through deceptive UI elements. The vulnerability is classified as CWE-20 (Improper Input Validation) with Chromium security severity rated High. Attack vector requires user interaction with a malicious webpage.
Defensive priority
high
Recommended defensive actions
- Update Google Chrome to version 148.0.7778.216 or later immediately. Verify update status via Chrome menu > Help > About Google Chrome.
- Deploy enterprise update policies to ensure rapid patch adoption across managed endpoints. Chrome updates typically roll out over several days; force-check for updates if immediate patching is required.
- Educate users on recognizing legitimate Chrome password prompts versus potential spoofed interfaces, particularly when visiting untrusted websites.
- Monitor for suspicious password prompt behaviors and report unexpected authentication requests to security teams.
- Review browser extension policies, as malicious extensions could compound UI spoofing risks by injecting crafted content into legitimate pages.
Evidence notes
Vulnerability description and severity classification sourced from official CVE record and NVD entry. CWE-20 (Improper Input Validation) identified as root cause via NVD weakness data. Vendor attribution to Google Chrome confirmed through Chrome Release Blog reference. Fix version 148.0.7778.216 documented in stable channel update.
Official resources
2026-05-28