Description
Use after free in TabStrip in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted Chrome extension. (Chromium security severity: Medium)
Published: 2026-11-03
Score: 9.6 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 04 Nov 2026 22:30:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in Chrome TabStrip Enables Remote Code Execution via Malicious Extension

Wed, 04 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

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


Wed, 04 Nov 2026 00:00:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Tue, 03 Nov 2026 23:15:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in Chrome TabStrip Enables Remote Code Execution via Malicious Extension

Tue, 03 Nov 2026 20:45:00 +0000

Type Values Removed Values Added
Description Use after free in TabStrip in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted Chrome extension. (Chromium security severity: Medium)
Weaknesses CWE-416
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-11-04T20:11:00.803Z

Reserved: 2026-11-03T10:35:10.539Z

Link: CVE-2026-121257

cve-icon Vulnrichment

Updated: 2026-11-04T20:00:27.861Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-11-03T21:17:36.603

Modified: 2026-11-04T20:19:10.630

Link: CVE-2026-121257

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T22:15:15Z

Weaknesses