CVE-2026-106331CWE-20

CVE-2026-106331

Medium · published October 6, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
12.7
In the wild
Unconfirmed
What it is

Improper input validation in Extensions in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to bypass web origin policy into a privileged page via a crafted Chrome extension. (Chromium security severity: Low)

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00227 · 12.7th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-10-06T23:18Z
Affected products (1)
ProductVersionsFixed in
google/chrome< 155.0.8059.39155.0.8059.39
References (2)
https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html · [email protected]https://issues.chromium.org/issues/553256068 · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 06 OCT 18:41Z
    Improper input validation in Extensions in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to bypass web origin…
    cvelistv5