CVE-2026-11243: Incorrect security UI in Google Chrome
CVE-2026-11243 is a vulnerability in Google Chrome's Downloads feature prior to version 149.0.7827.53. It involves an incorrect security UI implementation that allows a remote attacker to bypass navigation restrictions via a crafted HTML page. The vulnerability has a medium severity rating with a CVSS score of 5.4. No known exploits are reported in the wild. There is no explicit vendor advisory stating a patch or fix, and the affected version is identified as prior to 149.0.7827.53.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-11243) in Google Chrome concerns an inappropriate implementation of security UI in the Downloads component. Specifically, in versions before 149.0.7827.53, a crafted HTML page can bypass navigation restrictions intended to protect users. The issue is classified under CWE-346 (Inadequate Verification of Data Authenticity). The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, low confidentiality impact, no integrity impact, and low availability impact. The vendor advisory link is provided but does not explicitly confirm a patch or remediation status.
Potential Impact
An attacker can remotely bypass navigation restrictions in the Downloads feature of affected Chrome versions, potentially leading to limited unauthorized navigation actions. The impact is limited to low confidentiality loss and low availability impact, with no integrity impact. There are no known exploits in the wild, and the severity is rated medium.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html for current remediation guidance. Users and administrators should monitor official Google Chrome release notes for updates addressing this vulnerability. Until a patch is confirmed, cautious handling of untrusted HTML content and limiting user interaction with unknown downloads may reduce risk.
CVE-2026-11243: Incorrect security UI in Google Chrome
Description
CVE-2026-11243 is a vulnerability in Google Chrome's Downloads feature prior to version 149.0.7827.53. It involves an incorrect security UI implementation that allows a remote attacker to bypass navigation restrictions via a crafted HTML page. The vulnerability has a medium severity rating with a CVSS score of 5.4. No known exploits are reported in the wild. There is no explicit vendor advisory stating a patch or fix, and the affected version is identified as prior to 149.0.7827.53.
CVSS v3.1
Score 5.4medium
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-11243) in Google Chrome concerns an inappropriate implementation of security UI in the Downloads component. Specifically, in versions before 149.0.7827.53, a crafted HTML page can bypass navigation restrictions intended to protect users. The issue is classified under CWE-346 (Inadequate Verification of Data Authenticity). The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, low confidentiality impact, no integrity impact, and low availability impact. The vendor advisory link is provided but does not explicitly confirm a patch or remediation status.
Potential Impact
An attacker can remotely bypass navigation restrictions in the Downloads feature of affected Chrome versions, potentially leading to limited unauthorized navigation actions. The impact is limited to low confidentiality loss and low availability impact, with no integrity impact. There are no known exploits in the wild, and the severity is rated medium.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html for current remediation guidance. Users and administrators should monitor official Google Chrome release notes for updates addressing this vulnerability. Until a patch is confirmed, cautious handling of untrusted HTML content and limiting user interaction with unknown downloads may reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-04T17:11:01.729Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html","vendor":"Google"}]
Threat ID: 6a220ed9e29bf47b50de36d6
Added to database: 06/04/2026, 23:48:41 UTC
Last enriched: 06/12/2026, 10:48:14 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 69
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