What is CVE-2026-13833?

CVE-2026-13833 is a medium-severity vulnerability in Apple macOS, classified under CWE-457. CVSS score: 6.5/10. Published 2026-06-30.

How severe is CVE-2026-13833?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Apple macOS

CVE-2026-13833

Uninitialized Use in ANGLE in Google Chrome on Mac prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

Published 2026-06-30 · last modified 2026-07-01.

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 (21.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.3% 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)

CWE-457

References

chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352… (Vendor Advisory)
issues.chromium.org/issues/513920082 (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2026-13833?: CVE-2026-13833 is a medium-severity vulnerability in Apple macOS, classified under CWE-457. CVSS score: 6.5/10. Published 2026-06-30.
How severe is CVE-2026-13833?: Medium severity. CVSS v3 base score is 6.5 out of 10.