Use after free in Workers in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the… (CVE-2026-91749)
Use after free in Workers in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
AI Analysis
Technical Summary
CVE-2026-91749 is a use-after-free vulnerability in the Workers feature of Google Chrome before version 153.0.8010.47. Exploitation involves a remote attacker crafting a malicious HTML page that triggers the use-after-free condition, potentially leading to arbitrary code execution outside the sandbox environment. The vulnerability is critical, with high impact on confidentiality, integrity, and availability as indicated by the CVSS vector AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
Potential Impact
Successful exploitation could allow a remote attacker to execute arbitrary code outside the sandbox, compromising the security boundaries of the browser. This could lead to full system compromise, data theft, or further malicious activity. The vulnerability affects confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.47. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated beyond applying the official patch.
Use after free in Workers in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the… (CVE-2026-91749)
Description
Use after free in Workers in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
CVSS v3.1
Score 9.6critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-91749 is a use-after-free vulnerability in the Workers feature of Google Chrome before version 153.0.8010.47. Exploitation involves a remote attacker crafting a malicious HTML page that triggers the use-after-free condition, potentially leading to arbitrary code execution outside the sandbox environment. The vulnerability is critical, with high impact on confidentiality, integrity, and availability as indicated by the CVSS vector AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
Potential Impact
Successful exploitation could allow a remote attacker to execute arbitrary code outside the sandbox, compromising the security boundaries of the browser. This could lead to full system compromise, data theft, or further malicious activity. The vulnerability affects confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.47. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-ph3w-qrr8-hpm9
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-91749"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa07b155bf5e2cf5e88bdb
Added to database: 09/16/2026, 03:06:25 UTC
Last enriched: 09/16/2026, 03:10:44 UTC
Last updated: 09/16/2026, 05:01:23 UTC
Views: 3
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