CVE-2026-8003

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-06 · updated 2026-10-26
Weakness: CWE-20

Description

Insufficient validation of untrusted input in TabGroups in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform UI spoofing via malicious network traffic. (Chromium security severity: Low)

Affected products

Google Chrome: before 148.0.7778.96 — fixed in 148.0.7778.96

How to fix

Upgrade to a fixed version: Google Chrome 148.0.7778.96. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html
https://issues.chromium.org/issues/495985532

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