CVE-2026-87639: Use after free in Google Chrome
Use after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
CVE-2026-87639 is a use-after-free vulnerability (CWE-416) in the WebPackaging feature of Google Chrome before version 153.0.8010.36. An attacker with control over the renderer process can exploit this flaw to execute arbitrary code outside the sandbox environment by delivering a crafted HTML page. This vulnerability requires prior compromise of the renderer process and could lead to code execution beyond the sandbox protections.
Potential Impact
If exploited, this vulnerability could allow an attacker who has compromised the renderer process to execute arbitrary code outside the sandbox, potentially leading to further system compromise. The impact is significant given the ability to break sandbox isolation, but exploitation requires prior renderer compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch links or vendor advisory details are provided, users should monitor official Google Chrome security advisories for updates and apply the official fix once available.
CVE-2026-87639: Use after free in Google Chrome
Description
Use after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS v3.1
Score 8.3high
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-87639 is a use-after-free vulnerability (CWE-416) in the WebPackaging feature of Google Chrome before version 153.0.8010.36. An attacker with control over the renderer process can exploit this flaw to execute arbitrary code outside the sandbox environment by delivering a crafted HTML page. This vulnerability requires prior compromise of the renderer process and could lead to code execution beyond the sandbox protections.
Potential Impact
If exploited, this vulnerability could allow an attacker who has compromised the renderer process to execute arbitrary code outside the sandbox, potentially leading to further system compromise. The impact is significant given the ability to break sandbox isolation, but exploitation requires prior renderer compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch links or vendor advisory details are provided, users should monitor official Google Chrome security advisories for updates and apply the official fix once available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-q6r2-g5r7-2jfx
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-87639"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6aa15f8facd9273b49618a29
Added to database: 09/09/2026, 13:30:55 UTC
Last enriched: 09/09/2026, 14:03:46 UTC
Last updated: 09/09/2026, 19:51:59 UTC
Views: 2
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