CVE-2025-66286: Authorization Bypass Through User-Controlled Key in Red Hat Red Hat Enterprise Linux 6
CVE-2025-66286 is a medium-severity vulnerability in Red Hat Enterprise Linux 6 involving an API design flaw in WebKitGTK and WPE WebKit. This flaw allows untrusted web content to bypass the expected approval mechanism for network requests, enabling unexpected IP connections, DNS lookups, and HTTP requests. The issue arises because certain HTTP requests bypass the WebPage::send-request signal handler, which applications rely on to approve or reject network requests. There is no confirmed patch or official remediation available as of the published date. No known exploits in the wild have been reported.
AI Analysis
Technical Summary
This vulnerability stems from an API design flaw in WebKitGTK and WPE WebKit components used in Red Hat Enterprise Linux 6. Normally, applications use the WebPage::send-request signal handler to control network requests initiated by web content. However, some HTTP requests bypass this handler, allowing untrusted web content to perform network operations such as IP connections, DNS lookups, and HTTP requests without proper authorization. This constitutes an authorization bypass through a user-controlled key in the affected components.
Potential Impact
The vulnerability allows untrusted web content to perform network operations that should be controlled by the application, potentially leading to unauthorized network activity. The CVSS score of 4.7 (medium severity) reflects limited impact on confidentiality with no impact on integrity or availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2025-66286 for current remediation guidance. No official fix or temporary workaround is indicated in the provided information. Users should monitor the vendor advisory for updates and apply any patches or mitigations once available.
CVE-2025-66286: Authorization Bypass Through User-Controlled Key in Red Hat Red Hat Enterprise Linux 6
Description
CVE-2025-66286 is a medium-severity vulnerability in Red Hat Enterprise Linux 6 involving an API design flaw in WebKitGTK and WPE WebKit. This flaw allows untrusted web content to bypass the expected approval mechanism for network requests, enabling unexpected IP connections, DNS lookups, and HTTP requests. The issue arises because certain HTTP requests bypass the WebPage::send-request signal handler, which applications rely on to approve or reject network requests. There is no confirmed patch or official remediation available as of the published date. No known exploits in the wild have been reported.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability stems from an API design flaw in WebKitGTK and WPE WebKit components used in Red Hat Enterprise Linux 6. Normally, applications use the WebPage::send-request signal handler to control network requests initiated by web content. However, some HTTP requests bypass this handler, allowing untrusted web content to perform network operations such as IP connections, DNS lookups, and HTTP requests without proper authorization. This constitutes an authorization bypass through a user-controlled key in the affected components.
Potential Impact
The vulnerability allows untrusted web content to perform network operations that should be controlled by the application, potentially leading to unauthorized network activity. The CVSS score of 4.7 (medium severity) reflects limited impact on confidentiality with no impact on integrity or availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2025-66286 for current remediation guidance. No official fix or temporary workaround is indicated in the provided information. Users should monitor the vendor advisory for updates and apply any patches or mitigations once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2025-11-26T19:02:26.116Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2025-66286","vendor":"Red Hat"}]
Threat ID: 69ea15c187115cfb68118427
Added to database: 4/23/2026, 12:51:13 PM
Last enriched: 4/23/2026, 1:06:14 PM
Last updated: 4/23/2026, 3:00:25 PM
Views: 6
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