CVE-2026-9886: Use after free in Google Chrome
CVE-2026-9886 is a critical use-after-free vulnerability in the Base component of Google Chrome on Mac systems prior to version 148.0.7778.216. This flaw could allow a remote attacker to potentially escape the browser sandbox by crafting a malicious HTML page. The vulnerability has a high CVSS score of 9.6, indicating severe impact on confidentiality, integrity, and availability. There are no known exploits in the wild at the time of reporting. The vendor has published an advisory linked to a stable channel update, implying a fix is available in version 148.0.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Base component of Google Chrome on Mac platforms before version 148.0.7778.216. Exploitation requires user interaction (UI:R) and network access (AV:N) with no privileges required (PR:N). Successful exploitation could lead to sandbox escape, compromising the browser's security boundaries. The CVSS vector indicates critical impact on confidentiality, integrity, and availability. The vendor advisory confirms the release of a stable update addressing this issue.
Potential Impact
If exploited, this vulnerability could allow a remote attacker to escape the Chrome sandbox on Mac systems, potentially leading to full compromise of the browser environment and unauthorized access to system resources. The critical CVSS score reflects the high severity of this impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fixed version of Google Chrome (148.0.7778.216) has been released by the vendor. Users and administrators should update to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the update. Patch status is confirmed by the vendor advisory linked in the report.
CVE-2026-9886: Use after free in Google Chrome
Description
CVE-2026-9886 is a critical use-after-free vulnerability in the Base component of Google Chrome on Mac systems prior to version 148.0.7778.216. This flaw could allow a remote attacker to potentially escape the browser sandbox by crafting a malicious HTML page. The vulnerability has a high CVSS score of 9.6, indicating severe impact on confidentiality, integrity, and availability. There are no known exploits in the wild at the time of reporting. The vendor has published an advisory linked to a stable channel update, implying a fix is available in version 148.0.
CVSS v3.1
Score 9.6critical
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the Base component of Google Chrome on Mac platforms before version 148.0.7778.216. Exploitation requires user interaction (UI:R) and network access (AV:N) with no privileges required (PR:N). Successful exploitation could lead to sandbox escape, compromising the browser's security boundaries. The CVSS vector indicates critical impact on confidentiality, integrity, and availability. The vendor advisory confirms the release of a stable update addressing this issue.
Potential Impact
If exploited, this vulnerability could allow a remote attacker to escape the Chrome sandbox on Mac systems, potentially leading to full compromise of the browser environment and unauthorized access to system resources. The critical CVSS score reflects the high severity of this impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fixed version of Google Chrome (148.0.7778.216) has been released by the vendor. Users and administrators should update to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the update. Patch status is confirmed by the vendor advisory linked in the report.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-05-28T17:24:43.676Z
- 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: 6a18c659e29bf47b503b5038
Added to database: 05/28/2026, 22:48:57 UTC
Last enriched: 06/05/2026, 21:10:23 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 83
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