Improper input validation in Google Chrome
CVE-2026-17786
Insufficient validation of untrusted input in DevTools in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to perform privilege escalation via a crafted Chrome Extension. (Chromium security severity: Medium)
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (18.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.1% 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 151.0.7922.72
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107… (Release Notes, Vendor Advisory)
- issues.chromium.org/issues/513770449 (Permissions Required)
Frequently asked questions
- What is CVE-2026-17786?
- CVE-2026-17786 is a high-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2026-07-30.
- How severe is CVE-2026-17786?
- High severity. CVSS v3 base score is 8.8 out of 10.