CVE-2026-66313
published 2026-08-04CVE-2026-66313: Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.
PriorityP433medium6.8CVSS 3.1
AVLACLPRNUINSUCHILAN
EPSS
0.23%
13.5th percentile
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | edge_chromium | < 151.0.4129.59 | 151.0.4129.59 |
| microsoft | microsoft_edge | >= 1.0.0.0 < 151.0.4129.59 | 151.0.4129.59 |
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GHSA
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.
ghsa_unreviewed·2026-08-04
CVE-2026-66313 [MEDIUM] CWE-346 Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.
VulDB
Microsoft Edge up to 150.0.4078.99 improper authorization
vuldb·2026-08-04·CVSS 6.8
CVE-2026-66313 [MEDIUM] Microsoft Edge up to 150.0.4078.99 improper authorization
A vulnerability classified as problematic was found in Microsoft Edge. This affects an unknown part. The manipulation results in improper authorization.
This vulnerability was named CVE-2026-66313. The attack needs to be approached locally. There is no available exploit.
Upgrading the affected component is advised.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-08-04
Published