What is CVE-2026-102303?

CVE-2026-102303 is a medium-severity vulnerability in Google Chrome, classified under Use of Uninitialized Resource. CVSS score: 4.3/10. Published 2026-09-29.

How severe is CVE-2026-102303?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Google Chrome

CVE-2026-102303

Uninitialized resource in GPU in Google Chrome on on Android prior to 154.0.8037.92 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)

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

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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-908 — Use of Uninitialized Resource

References

chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0180748… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/559727039 (Permissions Required)

Frequently asked questions

What is CVE-2026-102303?: CVE-2026-102303 is a medium-severity vulnerability in Google Chrome, classified under Use of Uninitialized Resource. CVSS score: 4.3/10. Published 2026-09-29.
How severe is CVE-2026-102303?: Medium severity. CVSS v3 base score is 4.3 out of 10.