CVE-2026-106263

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)

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-25)

CWE

CWE-20

Published

2026-10-06

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• google:chrome

References

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

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