What is CVE-2026-87539?

CVE-2026-87539 is a low-severity vulnerability in Google Chrome, classified under Observable Discrepancy. CVSS score: 3.1/10. Published 2026-09-09.

How severe is CVE-2026-87539?

Low severity. CVSS v3 base score is 3.1 out of 10.

Vulnerability in Google Chrome

CVE-2026-87539

Observable discrepancy in Network in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3 metric

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

Affected products

Google Chrome

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

chrome-cve-admin@google.com
chrome-cve-admin@google.com

Frequently asked questions

What is CVE-2026-87539?: CVE-2026-87539 is a low-severity vulnerability in Google Chrome, classified under Observable Discrepancy. CVSS score: 3.1/10. Published 2026-09-09.
How severe is CVE-2026-87539?: Low severity. CVSS v3 base score is 3.1 out of 10.