CVE-2026-91733: Improper state validation in Google Chrome
Improper state validation in Skia in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
This vulnerability in Google Chrome's Skia graphics library is due to improper state validation. An attacker with control over the renderer process can exploit this flaw to read memory outside the sandbox environment, potentially exposing sensitive information. The issue was addressed in Chrome version 153.0.8010.47. The vulnerability is classified as high severity by Chromium security standards.
Potential Impact
A remote attacker who has compromised the renderer process can leverage this vulnerability to read memory outside the sandbox, which may lead to exposure of sensitive data. The sandbox escape aspect increases the risk by bypassing Chrome's security boundaries.
Mitigation Recommendations
Users should update Google Chrome to version 153.0.8010.47 or later, where this vulnerability has been fixed. 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 details. No additional mitigations are indicated by the vendor advisory.
CVE-2026-91733: Improper state validation in Google Chrome
Description
Improper state validation in Skia in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to read memory 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
This vulnerability in Google Chrome's Skia graphics library is due to improper state validation. An attacker with control over the renderer process can exploit this flaw to read memory outside the sandbox environment, potentially exposing sensitive information. The issue was addressed in Chrome version 153.0.8010.47. The vulnerability is classified as high severity by Chromium security standards.
Potential Impact
A remote attacker who has compromised the renderer process can leverage this vulnerability to read memory outside the sandbox, which may lead to exposure of sensitive data. The sandbox escape aspect increases the risk by bypassing Chrome's security boundaries.
Mitigation Recommendations
Users should update Google Chrome to version 153.0.8010.47 or later, where this vulnerability has been fixed. 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 details. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-14T22:52:28.093Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html","vendor":"Google"}]
Threat ID: 6aa9aed655bf5e2cf55add23
Added to database: 09/15/2026, 20:47:18 UTC
Last enriched: 09/15/2026, 21:02:32 UTC
Last updated: 09/16/2026, 03:17:26 UTC
Views: 6
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.