CVE-2026-5861: Use after free in Google Chrome
Use after free in V8 in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the V8 engine component of Google Chrome before version 147.0.7727.55. Exploitation requires user interaction (visiting a maliciously crafted HTML page) and can lead to arbitrary code execution within the sandbox environment. The CVSS vector indicates the attack can be performed remotely over the network with low attack complexity and no privileges required, but user interaction is necessary. The impact includes high confidentiality, integrity, and availability consequences. Google has released a stable channel update to fix this vulnerability.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code inside the Chrome sandbox, potentially compromising browser security and user data confidentiality, integrity, and availability. The vulnerability is rated high severity with a CVSS score of 8.8. There are no reports of active exploitation in the wild currently.
Mitigation Recommendations
Google has released an official fix in Chrome version 147.0.7727.55. Users and administrators should update to this version or later to remediate the vulnerability. Since this is not a cloud service, patching the client software is required. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-5861: Use after free in Google Chrome
Description
Use after free in V8 in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the V8 engine component of Google Chrome before version 147.0.7727.55. Exploitation requires user interaction (visiting a maliciously crafted HTML page) and can lead to arbitrary code execution within the sandbox environment. The CVSS vector indicates the attack can be performed remotely over the network with low attack complexity and no privileges required, but user interaction is necessary. The impact includes high confidentiality, integrity, and availability consequences. Google has released a stable channel update to fix this vulnerability.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code inside the Chrome sandbox, potentially compromising browser security and user data confidentiality, integrity, and availability. The vulnerability is rated high severity with a CVSS score of 8.8. There are no reports of active exploitation in the wild currently.
Mitigation Recommendations
Google has released an official fix in Chrome version 147.0.7727.55. Users and administrators should update to this version or later to remediate the vulnerability. Since this is not a cloud service, patching the client software is required. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-04-08T19:34:32.340Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html","vendor":"Google"}]
Threat ID: 69d6ca371cc7ad14dab3cb5f
Added to database: 4/8/2026, 9:35:51 PM
Last enriched: 4/16/2026, 11:55:43 AM
Last updated: 5/23/2026, 7:59:07 PM
Views: 90
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.