CVE-2026-87608 Google Chrome - Broken Access Control

Google Chrome < 153.0.8010.36 contains an insecure certificate validation vulnerability in FedCM, letting remote attackers bypass web origin policy via crafted network traffic and social engineering.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
9 September 2026
Updated
15 October 2026
Weakness
CWE-295

Vendor fix

Update to version 153.0.8010.36 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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