What is CVE-2026-102318?

CVE-2026-102318 is a medium-severity vulnerability in Google Chrome, classified under Out-of-bounds Read. CVSS score: 4.7/10. Published 2026-09-29.

How severe is CVE-2026-102318?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Out-of-bounds Read in Google Chrome

CVE-2026-102318

Out of bounds read in WebGL in Google Chrome prior to 154.0.8037.92 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Buffer Overflow

Published 2026-09-29 · last modified 2026-09-30.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Google Chrome

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0180748… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/562279351 (Permissions Required)

Frequently asked questions

What is CVE-2026-102318?: CVE-2026-102318 is a medium-severity vulnerability in Google Chrome, classified under Out-of-bounds Read. CVSS score: 4.7/10. Published 2026-09-29.
How severe is CVE-2026-102318?: Medium severity. CVSS v3 base score is 4.7 out of 10.