What is CVE-2026-17900?

CVE-2026-17900 is a medium-severity vulnerability in Google Chrome, classified under Origin Validation Error. CVSS score: 4.3/10. Published 2026-07-30.

How severe is CVE-2026-17900?

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

Vulnerability in Google Chrome

CVE-2026-17900

Inappropriate implementation in Enterprise in Google Chrome on Windows prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a malicious file. (Chromium security severity: Low)

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.

Affected products

Google Chrome — versions 151.0.7922.72

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

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

Frequently asked questions

What is CVE-2026-17900?: CVE-2026-17900 is a medium-severity vulnerability in Google Chrome, classified under Origin Validation Error. CVSS score: 4.3/10. Published 2026-07-30.
How severe is CVE-2026-17900?: Medium severity. CVSS v3 base score is 4.3 out of 10.