Description
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
Published: 2026-08-28
Score: 5.4 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 28 Aug 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 28 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
Description Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
Title Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
First Time appeared Microsoft
Microsoft edge Chromium
Weaknesses CWE-346
CPEs cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft edge Chromium
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C'}

Subscriptions

Microsoft Edge Chromium
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-28T20:14:38.366Z

Reserved: 2026-08-04T00:01:20.932Z

Link: CVE-2026-70309

cve-icon Vulnrichment

Updated: 2026-08-28T20:14:34.962Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-28T20:19:40.267

Modified: 2026-08-28T22:16:52.767

Link: CVE-2026-70309

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T21:30:05Z

Weaknesses