CVE-2026-106418

Chrome: Missing Authorization (CVE-2026-106418)

mediumEPSS 0.2%

Description

Missing authorization in Network in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to bypass web origin policy via crafted network traffic. (Chromium security severity: Low)

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

GoogleChrome
< 155.0.8059.39fixed in 155.0.8059.39< 155.0.8059.40fixed in 155.0.8059.40

Metrics

6.5
Source: cna-v3
6.3 %
Low — this CVE sits in the lower 10% of all CVEs scored today.
Show all metrics
Severity
medium
no public PoC known
0.2 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-10-06 18:41 UTC
CWE-862

Weakness classes (CWE)

  • CWE-862Class

    Missing Authorization

    The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

    cwe.mitre.org →

References & sources

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

  1. CVE Modified2026-10-09 22:16 UTC· 134c704f-9b21-4f2e-91b3-4a467353bcc0
    • CVSS V3.1: AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    • SSVC: {"id":"CVE-2026-106418","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technical…
  2. New CVE Received2026-10-06 19:18 UTC· chrome-cve-admin@google.com
    • Description: Missing authorization in Network in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to bypass web origin policy via crafted network traffic. (Chromium security severity: Low)
    • CWE: CWE-862
    • Affected: New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/106xxx/CVE-2026-106418.json">CVE-2026-106418</a>
    • Reference: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html