CVE-2026-7963

chromium-browser: Inappropriate implementation in ServiceWorker

Published May 6, 2026 CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
Description
Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6250-1 chromium security update
History
Type Values Removed Values Added
Title Chrome ServiceWorker Sandbox Escape via Crafted HTML chromium-browser: Inappropriate implementation in ServiceWorker
Weaknesses CWE-358
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Title Chrome ServiceWorker Sandbox Escape via Crafted HTML
Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
Type Values Removed Values Added
Title ServiceWorker Sandbox Escape in Chrome via Compromised Renderer
Weaknesses CWE-269
CWE-285
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
Title ServiceWorker Sandbox Escape in Chrome via Compromised Renderer
Weaknesses CWE-269
CWE-285
Type Values Removed Values Added
Description Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
May 7, 2026, 3:56 AM
Reserved
May 5, 2026, 10:59 PM
Status
Analyzed
Published
May 6, 2026, 7:16 PM
Modified
Oct 26, 2026, 7:10 PM
Severity
Moderate
Public date
May 5, 2026, 12:00 AM