CVE-2026-57990: CWE-552: Files or Directories Accessible to External Parties in Microsoft Microsoft Edge (Chromium-based)
Files or directories accessible to external parties in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
AI Analysis
Technical Summary
This vulnerability (CWE-552) in Microsoft Edge (Chromium-based) allows unauthorized attackers to access files or directories that should not be externally accessible, leading to information disclosure over a network. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and high confidentiality impact with no integrity or availability impact. Microsoft has released an official fix for this issue.
Potential Impact
An attacker can remotely disclose sensitive information by accessing files or directories that are improperly exposed by Microsoft Edge (Chromium-based). This can lead to a significant confidentiality breach without affecting integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security updates to Microsoft Edge (Chromium-based) to remediate this issue.
CVE-2026-57990: CWE-552: Files or Directories Accessible to External Parties in Microsoft Microsoft Edge (Chromium-based)
Description
Files or directories accessible to external parties in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
CVSS v3.1
Score 7.4high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-552) in Microsoft Edge (Chromium-based) allows unauthorized attackers to access files or directories that should not be externally accessible, leading to information disclosure over a network. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and high confidentiality impact with no integrity or availability impact. Microsoft has released an official fix for this issue.
Potential Impact
An attacker can remotely disclose sensitive information by accessing files or directories that are improperly exposed by Microsoft Edge (Chromium-based). This can lead to a significant confidentiality breach without affecting integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security updates to Microsoft Edge (Chromium-based) to remediate this issue.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-26c6-hf7j-9wr3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-57990"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- Remediation Level
- official-fix
Threat ID: 6a668e339c2644c7f891a08c
Added to database: 07/26/2026, 22:46:11 UTC
Last enriched: 08/08/2026, 16:49:40 UTC
Last updated: 09/08/2026, 22:52:13 UTC
Views: 94
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