Buffer overflow in Google Chrome
CVE-2026-19156
Heap buffer overflow in Base in Google Chrome prior to 151.0.7922.109 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High)
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (16.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Google Chrome — versions 151.0.7922.109
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0119367… (Release Notes, Vendor Advisory)
- issues.chromium.org/issues/533331920 (Permissions Required)
Frequently asked questions
- What is CVE-2026-19156?
- CVE-2026-19156 is a high-severity vulnerability in Google Chrome, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-08-06.
- How severe is CVE-2026-19156?
- High severity. CVSS v3 base score is 7.5 out of 10.