What’s Vulnerable › Vulnerabilities

CVE-2026-106263

• Severity: medium (CVSS 6.5 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: 2026-10-06 · updated 2026-10-08
• Weakness: CWE-20

Description

Improper input validation in SignIn in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted Chrome extension. (Chromium security severity: Medium)

Affected products

• Google Chrome: before 155.0.8059.39 — fixed in 155.0.8059.39

How to fix

Upgrade to a fixed version: Google Chrome 155.0.8059.39. Check the vendor advisory for mitigations.

In the news

• Chromium CVE-2026-106263: Improper input validation

References

• https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html
• https://issues.chromium.org/issues/553149001

Get alerted when CVE-2026-106263 or the next vulnerability affects your stack