CVE-2026-91708: Race condition in Google Chrome
Race condition in Network in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
CVE-2026-91708 describes a race condition in the Network subsystem of Google Chrome versions before 153.0.8010.47. Exploitation requires prior compromise of the renderer process, after which an attacker can leverage a crafted HTML page to access data across origins, violating the same-origin policy. The vulnerability was publicly disclosed and rated high severity by Chromium security. Google has issued a stable channel update to fix this issue as per their advisory.
Potential Impact
If exploited, an attacker with control over the renderer process can bypass same-origin restrictions to access sensitive data from other origins. This can lead to unauthorized data disclosure within the browser context. The impact is limited to scenarios where the renderer process is already compromised.
Mitigation Recommendations
Google has released an official stable channel update that fixes this vulnerability in Chrome version 153.0.8010.47. Users and administrators should update to this version or later to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-91708: Race condition in Google Chrome
Description
Race condition in Network in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)
CVSS v3.1
Score 3.1low
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-2026-91708 describes a race condition in the Network subsystem of Google Chrome versions before 153.0.8010.47. Exploitation requires prior compromise of the renderer process, after which an attacker can leverage a crafted HTML page to access data across origins, violating the same-origin policy. The vulnerability was publicly disclosed and rated high severity by Chromium security. Google has issued a stable channel update to fix this issue as per their advisory.
Potential Impact
If exploited, an attacker with control over the renderer process can bypass same-origin restrictions to access sensitive data from other origins. This can lead to unauthorized data disclosure within the browser context. The impact is limited to scenarios where the renderer process is already compromised.
Mitigation Recommendations
Google has released an official stable channel update that fixes this vulnerability in Chrome version 153.0.8010.47. Users and administrators should update to this version or later to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-14T22:51:00.171Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html","vendor":"Google"}]
Threat ID: 6aa9aed355bf5e2cf55add07
Added to database: 09/15/2026, 20:47:15 UTC
Last enriched: 09/15/2026, 21:31:32 UTC
Last updated: 09/16/2026, 04:01:23 UTC
Views: 8
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