CVE-2026-5867: Heap buffer overflow in Google Chrome
Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
This vulnerability involves a heap buffer overflow in the WebML feature of Google Chrome before version 147.0.7727.55. Exploitation requires user interaction (UI:R) and network attack vector (AV:N). Successful exploitation can lead to disclosure of potentially sensitive information from the browser's process memory. The CVSS vector indicates low attack complexity and no privileges required. The issue is fixed in Chrome 147.0.7727.55 as per the official Google Chrome stable channel update advisory.
Potential Impact
An attacker can remotely cause a heap buffer overflow in the WebML component by delivering a crafted HTML page, potentially leaking sensitive information from Chrome's process memory. The impact is limited to confidentiality with no effect on integrity or availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Users should update Google Chrome to version 147.0.7727.55 or later, where this vulnerability is fixed. The vendor advisory from Google confirms the availability of this official fix. No additional mitigations are indicated or required beyond applying the update.
CVE-2026-5867: Heap buffer overflow in Google Chrome
Description
Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap buffer overflow in the WebML feature of Google Chrome before version 147.0.7727.55. Exploitation requires user interaction (UI:R) and network attack vector (AV:N). Successful exploitation can lead to disclosure of potentially sensitive information from the browser's process memory. The CVSS vector indicates low attack complexity and no privileges required. The issue is fixed in Chrome 147.0.7727.55 as per the official Google Chrome stable channel update advisory.
Potential Impact
An attacker can remotely cause a heap buffer overflow in the WebML component by delivering a crafted HTML page, potentially leaking sensitive information from Chrome's process memory. The impact is limited to confidentiality with no effect on integrity or availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Users should update Google Chrome to version 147.0.7727.55 or later, where this vulnerability is fixed. The vendor advisory from Google confirms the availability of this official fix. No additional mitigations are indicated or required beyond applying the update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-04-08T19:34:33.781Z
- 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: 69d6ca391cc7ad14dab3cbab
Added to database: 4/8/2026, 9:35:53 PM
Last enriched: 4/16/2026, 11:32:14 AM
Last updated: 5/25/2026, 2:40:06 AM
Views: 53
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