What is CVE-2026-7990?

CVE-2026-7990 is a high-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2026-05-06.

How severe is CVE-2026-7990?

High severity. CVSS v3 base score is 7.8 out of 10.

Improper input validation in Google Chrome

CVE-2026-7990

Insufficient validation of untrusted input in Updater in Google Chrome on Windows prior to 148.0.7778.96 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.000 (1.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Google Chrome — versions 148.0.7778.96
Microsoft Windows

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

chrome-cve-admin@google.com (Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2026-7990?: CVE-2026-7990 is a high-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2026-05-06.
How severe is CVE-2026-7990?: High severity. CVSS v3 base score is 7.8 out of 10.