Bug 2361430 (CVE-2025-3839)

Summary: CVE-2025-3839 epiphany: Insecure External Protocol Invocation in Epiphany
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Epiphany, a tool that allows websites to open external URL handler applications with minimal user interaction. This design can be misused to exploit vulnerabilities within those handlers, making them appear remotely exploitable. The browser fails to properly warn or gate this action, resulting in potential code execution on the client device via trusted UI behavior.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2361431    
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Description OSIDB Bzimport 2025-04-21 09:33:39 UTC
Epiphany prior to versions 48.1 and 47.5 allows websites to trigger external URL handlers with insufficient user interaction or warning. If the handler application is vulnerable, this opens the door to potential code execution under the user's context. This behavior misleads users and shifts the attack surface to local applications.