Improper input validation in Apple macOS
CVE-2026-7997
Insufficient validation of untrusted input in Updater in Google Chrome on Mac prior to 148.0.7778.96 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Low)
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.001 (1.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Apple macOS
- Google Chrome — versions 148.0.7778.96
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html (Vendor Advisory)
- issues.chromium.org/issues/487960705 (Permissions Required, Issue Tracking)
Frequently asked questions
- What is CVE-2026-7997?
- CVE-2026-7997 is a high-severity vulnerability in Apple macOS, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2026-05-06.
- How severe is CVE-2026-7997?
- High severity. CVSS v3 base score is 7.8 out of 10.