CVE-2026-19156: Heap buffer overflow in Google Chrome
A heap buffer overflow vulnerability exists in the Base component of Google Chrome prior to version 151.0.7922.109. This flaw could be exploited by an attacker who convinces a user to install a malicious Chrome extension, potentially leading to heap corruption. The vulnerability has a high severity rating with a CVSS score of 7.5. No confirmed exploits in the wild have been reported. The vendor advisory indicates a stable channel update addressing this issue is available.
AI Analysis
Technical Summary
CVE-2026-19156 is a heap buffer overflow vulnerability in the Base component of Google Chrome versions before 151.0.7922.109. An attacker could exploit this by tricking a user into installing a crafted malicious Chrome extension, which may cause heap corruption. The vulnerability is rated high severity with a CVSS 3.1 score of 7.5, reflecting network attack vector, high impact on confidentiality, integrity, and availability, and requiring user interaction with high attack complexity.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code or cause a denial of service due to heap corruption in the affected Chrome versions. This could compromise the confidentiality, integrity, and availability of the user's system or data within the browser context. However, exploitation requires user interaction in the form of installing a malicious extension.
Mitigation Recommendations
A stable channel update for Google Chrome has been released that addresses this vulnerability. Users and administrators should update Chrome to version 151.0.7922.109 or later to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-19156: Heap buffer overflow in Google Chrome
Description
A heap buffer overflow vulnerability exists in the Base component of Google Chrome prior to version 151.0.7922.109. This flaw could be exploited by an attacker who convinces a user to install a malicious Chrome extension, potentially leading to heap corruption. The vulnerability has a high severity rating with a CVSS score of 7.5. No confirmed exploits in the wild have been reported. The vendor advisory indicates a stable channel update addressing this issue is available.
CVSS v3.1
Score 7.5high
Affected software
Chrome
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-19156 is a heap buffer overflow vulnerability in the Base component of Google Chrome versions before 151.0.7922.109. An attacker could exploit this by tricking a user into installing a crafted malicious Chrome extension, which may cause heap corruption. The vulnerability is rated high severity with a CVSS 3.1 score of 7.5, reflecting network attack vector, high impact on confidentiality, integrity, and availability, and requiring user interaction with high attack complexity.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code or cause a denial of service due to heap corruption in the affected Chrome versions. This could compromise the confidentiality, integrity, and availability of the user's system or data within the browser context. However, exploitation requires user interaction in the form of installing a malicious extension.
Mitigation Recommendations
A stable channel update for Google Chrome has been released that addresses this vulnerability. Users and administrators should update Chrome to version 151.0.7922.109 or later to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-06T16:51:49.049Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01193673229.html","vendor":"Google"}]
Threat ID: 6a7506febf8831d5395f5901
Added to database: 08/06/2026, 22:13:18 UTC
Last enriched: 08/14/2026, 15:48:00 UTC
Last updated: 09/21/2026, 23:03:40 UTC
Views: 32
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.