CVE-2026-7963: Inappropriate implementation in Google Chrome
CVE-2026-7963 is a high-severity vulnerability in Google Chrome's ServiceWorker implementation prior to version 148.0.7778.96. It allows a remote attacker who has already compromised the renderer process to potentially escape the sandbox by using a crafted HTML page. This vulnerability could lead to full compromise of the affected system. No known exploits are reported in the wild at this time. The vendor advisory linked does not explicitly confirm the availability of a patch or remediation status.
AI Analysis
Technical Summary
This vulnerability involves an inappropriate implementation in the ServiceWorker component of Google Chrome before version 148.0.7778.96. An attacker with control over the renderer process can exploit this flaw via a specially crafted HTML page to perform a sandbox escape, potentially leading to elevated privileges and full system compromise. The CVSS score of 8.3 reflects the high impact on confidentiality, integrity, and availability, with network attack vector, high attack complexity, no privileges required, and user interaction needed.
Potential Impact
Successful exploitation can result in a sandbox escape from the renderer process, allowing an attacker to execute code with higher privileges than normally permitted within the browser sandbox. This can lead to a complete compromise of the user's system confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html for current remediation guidance. Until an official fix is confirmed, users should exercise caution when interacting with untrusted web content and consider limiting exposure to potentially malicious HTML pages. No official fix or temporary workaround is explicitly stated in the provided advisory.
CVE-2026-7963: Inappropriate implementation in Google Chrome
Description
CVE-2026-7963 is a high-severity vulnerability in Google Chrome's ServiceWorker implementation prior to version 148.0.7778.96. It allows a remote attacker who has already compromised the renderer process to potentially escape the sandbox by using a crafted HTML page. This vulnerability could lead to full compromise of the affected system. No known exploits are reported in the wild at this time. The vendor advisory linked does not explicitly confirm the availability of a patch or remediation status.
CVSS v3.1
Score 8.3high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an inappropriate implementation in the ServiceWorker component of Google Chrome before version 148.0.7778.96. An attacker with control over the renderer process can exploit this flaw via a specially crafted HTML page to perform a sandbox escape, potentially leading to elevated privileges and full system compromise. The CVSS score of 8.3 reflects the high impact on confidentiality, integrity, and availability, with network attack vector, high attack complexity, no privileges required, and user interaction needed.
Potential Impact
Successful exploitation can result in a sandbox escape from the renderer process, allowing an attacker to execute code with higher privileges than normally permitted within the browser sandbox. This can lead to a complete compromise of the user's system confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html for current remediation guidance. Until an official fix is confirmed, users should exercise caution when interacting with untrusted web content and consider limiting exposure to potentially malicious HTML pages. No official fix or temporary workaround is explicitly stated in the provided advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-05-05T22:59:21.773Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html","vendor":"Google"}]
Threat ID: 69fb86e3cbff5d861024de86
Added to database: 05/06/2026, 18:22:27 UTC
Last enriched: 05/14/2026, 03:56:06 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 82
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