CVE-2026-14003

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-30 · updated 2026-10-25
Weakness: CWE-284

Description

Insufficient policy enforcement in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Medium)

Affected products

Google Chrome: before 150.0.7871.47 — fixed in 150.0.7871.47

How to fix

Upgrade to a fixed version: Google Chrome 150.0.7871.47. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html
https://issues.chromium.org/issues/514503077

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