What is CVE-2026-106386?

CVE-2026-106386 is a medium-severity vulnerability in Google Chrome, classified under Use of Uninitialized Resource. CVSS score: 6.5/10. Published 2026-10-06.

How severe is CVE-2026-106386?

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

Vulnerability in Google Chrome

CVE-2026-106386

Uninitialized resource in WebAudio in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Published 2026-10-06 · last modified 2026-10-07.

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

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/2026/10/stable-channel-update-for-desktop_0864717…
issues.chromium.org/issues/553156221

Frequently asked questions

What is CVE-2026-106386?: CVE-2026-106386 is a medium-severity vulnerability in Google Chrome, classified under Use of Uninitialized Resource. CVSS score: 6.5/10. Published 2026-10-06.
How severe is CVE-2026-106386?: Medium severity. CVSS v3 base score is 6.5 out of 10.