CVE-2026-91735: Incorrect authorization in Google Chrome
Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
CVE-2026-91735 is an incorrect authorization vulnerability in Google Chrome's WebUI prior to version 153.0.8010.47. It enables a remote attacker, with control over the renderer process, to execute arbitrary code outside the browser sandbox through a specially crafted HTML page. This elevates the attacker's privileges beyond the renderer sandbox, increasing the potential impact of exploitation.
Potential Impact
Successful exploitation can lead to arbitrary code execution outside the sandbox, which may allow an attacker to bypass security boundaries within the browser. This increases the risk of system compromise or further attacks originating from the browser context.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.47. Users and administrators should update to this version or later to remediate the vulnerability. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html for detailed update instructions.
CVE-2026-91735: Incorrect authorization in Google Chrome
Description
Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS v3.1
Score 8.3high
Affected software
Chrome
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-91735 is an incorrect authorization vulnerability in Google Chrome's WebUI prior to version 153.0.8010.47. It enables a remote attacker, with control over the renderer process, to execute arbitrary code outside the browser sandbox through a specially crafted HTML page. This elevates the attacker's privileges beyond the renderer sandbox, increasing the potential impact of exploitation.
Potential Impact
Successful exploitation can lead to arbitrary code execution outside the sandbox, which may allow an attacker to bypass security boundaries within the browser. This increases the risk of system compromise or further attacks originating from the browser context.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.47. Users and administrators should update to this version or later to remediate the vulnerability. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-14T22:52:31.449Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html","vendor":"Google"}]
Threat ID: 6aa9aed655bf5e2cf55add25
Added to database: 09/15/2026, 20:47:18 UTC
Last enriched: 09/15/2026, 21:02:26 UTC
Last updated: 09/16/2026, 04:01:23 UTC
Views: 7
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