What is CVE-2026-8582?

CVE-2026-8582 is a medium-severity vulnerability in Google Chrome, classified under CWE-664. CVSS score: 5.3/10. Published 2026-05-14.

How severe is CVE-2026-8582?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Google Chrome

CVE-2026-8582

Object lifecycle issue in Dawn in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)

Published 2026-05-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.9th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Google Chrome — versions 148.0.7778.168

Weakness classification (CWE)

CWE-664

References

chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html (Vendor Advisory)
issues.chromium.org/issues/497594413 (Permissions Required)

Frequently asked questions

What is CVE-2026-8582?: CVE-2026-8582 is a medium-severity vulnerability in Google Chrome, classified under CWE-664. CVSS score: 5.3/10. Published 2026-05-14.
How severe is CVE-2026-8582?: Medium severity. CVSS v3 base score is 5.3 out of 10.