CVE-2026-9997: Use after free in Google Chrome
CVE-2026-9997 is a use-after-free vulnerability in the Input component of Google Chrome prior to version 148.0.7778.216. This flaw could allow a remote attacker who has already compromised the renderer process to potentially escape the sandbox by using a specially crafted HTML page. The vulnerability has a high severity rating with a CVSS score of 8.3. No known exploits in the wild have been reported at this time. The vendor advisory linked indicates a stable channel update addressing this issue, implying a fix is available in version 148.0.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Input handling of Google Chrome before version 148.0.7778.216. An attacker with control over the renderer process could exploit this flaw to perform a sandbox escape, which could lead to elevated privileges or further compromise of the host system. The issue is rated high severity with a CVSS 3.1 score of 8.3, reflecting network attack vector, high impact on confidentiality, integrity, and availability, and requiring user interaction with high attack complexity. The official Google Chrome stable channel update released on May 28, 2026, addresses this vulnerability.
Potential Impact
Successful exploitation could allow an attacker who has compromised the renderer process to escape the Chrome sandbox, potentially leading to execution of arbitrary code with higher privileges on the host system. This elevates the risk of further system compromise beyond the browser sandbox. No active exploitation has been reported so far.
Mitigation Recommendations
A fixed version of Google Chrome (148.0.7778.216) has been released by Google to address this vulnerability. Users and administrators should update to this version or later to mitigate the risk. Since this is a client-side application, patching the browser is the primary and recommended mitigation. No additional vendor advisories indicate alternative mitigations or that no action is required.
CVE-2026-9997: Use after free in Google Chrome
Description
CVE-2026-9997 is a use-after-free vulnerability in the Input component of Google Chrome prior to version 148.0.7778.216. This flaw could allow a remote attacker who has already compromised the renderer process to potentially escape the sandbox by using a specially crafted HTML page. The vulnerability has a high severity rating with a CVSS score of 8.3. No known exploits in the wild have been reported at this time. The vendor advisory linked indicates a stable channel update addressing this issue, implying a fix is available in version 148.0.
CVSS v3.1
Score 8.3high
Affected software
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 involves a use-after-free condition in the Input handling of Google Chrome before version 148.0.7778.216. An attacker with control over the renderer process could exploit this flaw to perform a sandbox escape, which could lead to elevated privileges or further compromise of the host system. The issue is rated high severity with a CVSS 3.1 score of 8.3, reflecting network attack vector, high impact on confidentiality, integrity, and availability, and requiring user interaction with high attack complexity. The official Google Chrome stable channel update released on May 28, 2026, addresses this vulnerability.
Potential Impact
Successful exploitation could allow an attacker who has compromised the renderer process to escape the Chrome sandbox, potentially leading to execution of arbitrary code with higher privileges on the host system. This elevates the risk of further system compromise beyond the browser sandbox. No active exploitation has been reported so far.
Mitigation Recommendations
A fixed version of Google Chrome (148.0.7778.216) has been released by Google to address this vulnerability. Users and administrators should update to this version or later to mitigate the risk. Since this is a client-side application, patching the browser is the primary and recommended mitigation. No additional vendor advisories indicate alternative mitigations or that no action is required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-05-28T17:25:10.574Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html","vendor":"Google"}]
Threat ID: 6a18c685e29bf47b503b65bf
Added to database: 05/28/2026, 22:49:41 UTC
Last enriched: 06/05/2026, 21:17:47 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 83
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