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 is a heap buffer overflow (CWE-122) in the WebML feature of Google Chrome before version 147.0.7727.55. Exploitation requires user interaction (UI:R) and network access (AV:N) with no privileges required (PR:N). Successful exploitation can lead to disclosure of potentially sensitive information from process memory. The CVSS vector indicates confidentiality impact only, with no impact on integrity or availability. The vendor advisory URL is provided but does not explicitly state patch or fix details.
Potential Impact
An attacker who convinces a user to visit a specially crafted HTML page could exploit this vulnerability to read sensitive information from Chrome's process memory. The impact is limited to confidentiality loss; there is no impact on system integrity or availability. No known active exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html for current remediation guidance. Until an official fix is confirmed, users should exercise caution when visiting untrusted websites and consider updating Chrome to version 147.0.7727.55 or later once available.
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)
CVSS v3.1
Score 4.3medium
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
This vulnerability is a heap buffer overflow (CWE-122) in the WebML feature of Google Chrome before version 147.0.7727.55. Exploitation requires user interaction (UI:R) and network access (AV:N) with no privileges required (PR:N). Successful exploitation can lead to disclosure of potentially sensitive information from process memory. The CVSS vector indicates confidentiality impact only, with no impact on integrity or availability. The vendor advisory URL is provided but does not explicitly state patch or fix details.
Potential Impact
An attacker who convinces a user to visit a specially crafted HTML page could exploit this vulnerability to read sensitive information from Chrome's process memory. The impact is limited to confidentiality loss; there is no impact on system integrity or availability. No known active exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html for current remediation guidance. Until an official fix is confirmed, users should exercise caution when visiting untrusted websites and consider updating Chrome to version 147.0.7727.55 or later once available.
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: 04/08/2026, 21:35:53 UTC
Last enriched: 05/26/2026, 19:38:18 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 105
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