Out-of-bounds Read in Apple macOS
CVE-2026-13820
Out of bounds read in Skia in Google Chrome on Mac prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.7% 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
- Apple macOS
- Google Chrome — versions 150.0.7871.47
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352… (Vendor Advisory)
- issues.chromium.org/issues/512986879 (Permissions Required, Issue Tracking)
Frequently asked questions
- What is CVE-2026-13820?
- CVE-2026-13820 is a medium-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-06-30.
- How severe is CVE-2026-13820?
- Medium severity. CVSS v3 base score is 6.5 out of 10.