SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-106243

Incomplete cleanup in Proxy Auth in Google Chrome prior to 155.0.8059.39 allowed an adjacent attacker to obtain sensitive information via crafted network traffic.

MEDIUM 5.3EPSS 0.11%

Does this matter?

Lower severity and a low EPSS score (0.11%). Track it; it rarely justifies an emergency change on its own.

Description

Incomplete cleanup in Proxy Auth in Google Chrome prior to 155.0.8059.39 allowed an adjacent attacker to obtain sensitive information via crafted network traffic. (Chromium security severity: High)

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
0.11% probability · 1th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-459
Affected
google/chrome
Source
chrome-cve-admin@google.com
EPSS trend
0%3%5%7 October 2026: 0.10%26 October 2026: 0.11%7 October 202626 October 2026

EPSS moved from 0.1% on 7 October 2026 to 0.1% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.