CVE-2026-102309: Use after free in Google Chrome
Use after free in FullScreen in Google Chrome prior to 154.0.8037.92 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
CVE-2026-102309 is a use-after-free vulnerability in the FullScreen feature of Google Chrome versions before 154.0.8037.92. Exploitation of this vulnerability enables remote code execution outside the sandbox environment via a specially crafted HTML page. The vulnerability has been publicly disclosed and is rated high severity by Chromium security. Google has released an official stable channel update to fix this issue.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code outside the sandbox, potentially compromising the security of the affected system. This could lead to unauthorized actions or control over the victim's machine through the Chrome browser.
Mitigation Recommendations
Google has released an official stable channel update for Google Chrome that fixes this vulnerability in version 154.0.8037.92. Users and administrators should update their Chrome installations to version 154.0.8037.92 or later to mitigate this issue. No additional mitigation steps are required beyond applying this official fix.
CVE-2026-102309: Use after free in Google Chrome
Description
Use after free in FullScreen in Google Chrome prior to 154.0.8037.92 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS v3.1
Score 9.6critical
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-102309 is a use-after-free vulnerability in the FullScreen feature of Google Chrome versions before 154.0.8037.92. Exploitation of this vulnerability enables remote code execution outside the sandbox environment via a specially crafted HTML page. The vulnerability has been publicly disclosed and is rated high severity by Chromium security. Google has released an official stable channel update to fix this issue.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code outside the sandbox, potentially compromising the security of the affected system. This could lead to unauthorized actions or control over the victim's machine through the Chrome browser.
Mitigation Recommendations
Google has released an official stable channel update for Google Chrome that fixes this vulnerability in version 154.0.8037.92. Users and administrators should update their Chrome installations to version 154.0.8037.92 or later to mitigate this issue. No additional mitigation steps are required beyond applying this official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-28T21:44:18.843Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01807488085.html","vendor":"Google"}]
Threat ID: 6abc21de680226ef68400656
Added to database: 09/29/2026, 20:38:54 UTC
Last enriched: 09/29/2026, 20:51:46 UTC
Last updated: 09/30/2026, 03:03:21 UTC
Views: 7
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