CVE-2025-66286

MEDIUM EPSS 14.0%

Published Apr 23, 20262mo ago · Modified Jun 17, 20262w ago

4.7 CVSS 3.1

Medium

Published Apr 23, 2026 2mo ago

Last Modified Jun 17, 2026 2w ago

Description

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 of HTTP requests bypass this signal handler.

CVSS Details

Base Score

4.7

Exploitability

2.8

Impact

1.4

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Changed

Confidentiality Low

Integrity None

Availability None

Threat Intelligence

EPSS Exploit Probability

14.0% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-639

References 3

access.redhat.com https://access.redhat.com/security/cve/CVE-2025-66286
bugs.webkit.org https://bugs.webkit.org/show_bug.cgi?id=259787
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2424652

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.