CVE-2025-66286 — An API design flaw in WebKitGTK and WPE WebKit allows
CVE-2025-66286 — An API design flaw in WebKitGTK and WPE WebKit allows untrusted web content to unexpectedly perform IP connections, DNS lookups, and HTTP requests. Applications expect to use the WebPage::send-request signal handler to approve or reject all network requests. However, certain types o
What This Means For You
- If your environment is affected by CWE-639, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2025-66286 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
Potential Network Connection Bypass via WebKitGTK/WPE - CVE-2025-66286
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2025-66286 | vulnerability | CVE-2025-66286 |
| CWE-639 | weakness | CWE-639 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 23, 2026 at 16:16 UTC |
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