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4.3

Google Chrome PDF Spoofing via HTML Page

CVE-2026-11261 · published 5 months ago
Summary

A hacker who has control of a Chrome user's browser can trick them into seeing fake information on their screen. This is a low-risk issue, but it's still a good idea to update your Chrome browser to the latest version to prevent it. If you're a Chrome administrator, make sure to update all your users' browsers as well.

What to do
  • Update debian chromium to version 149.0.7827.53-1~deb12u1.
  • Update debian chromium to version 149.0.7827.53-1~deb13u1.
  • Update debian chromium to version 149.0.7827.53-1.
Affected software
Ecosystem VendorProductAffected versions
Debian:11 debian chromium All versions
Debian:12 debian chromium < 149.0.7827.53-1~deb12u1
Fix: upgrade to 149.0.7827.53-1~deb12u1
Debian:13 debian chromium < 149.0.7827.53-1~deb13u1
Fix: upgrade to 149.0.7827.53-1~deb13u1
Debian:14 debian chromium < 149.0.7827.53-1
Fix: upgrade to 149.0.7827.53-1
Original advisory text
Inappropriate implementation in PDF in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to perform UI spoofing via a crafted HTML page. (Chrom...
Inappropriate implementation in PDF in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
4.3 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-20Improper Input Validation
Timeline
Published5 Jun 2026
Updated26 Oct 2026
First seen5 Jun 2026
Sources
CVE-2026-11261 · NVD
DEBIAN-CVE-2026-11261 · OSV
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