CVE-2026-103922 Capacitor Android and iOS: remote content can be loaded at the app origin via the internal HTTP proxy path

What is CVE-2026-103922?

CVE-2026-103922 is a critical server-side request forgery vulnerability in @capacitor android, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Capacitor is a cross-platform native runtime for web applications. From 6.0.0 until 6.2.2, 7.6.9, 8.3.5, 8.4.3, and 8.5.1, the Android and iOS WebView navigation guard validates a target URL's host and scheme but not its path, allowing a victim who activates an untrusted link to navigate a frame to /_capacitor_http_interceptor_. The native proxy can fetch an attacker-selected URL and return the response as a document at the application's own origin, allowing script in that response to access same-origin storage, cookies, and registered Capacitor plugin capabilities. Applications remain affected when CapacitorHttp is disabled because affected releases serve the proxy path regardless of that setting. This issue is fixed in versions 6.2.2, 7.6.9, 8.3.5, 8.4.3, and 8.5.1.

Weakness: CWE-441, CWE-346

Which versions are affected by CVE-2026-103922?

40 open source packages ship an affected version, including @capacitor/android, com.capacitorjs:core and github.com/ionic-team/capacitor-swift-pm.

How do I fix CVE-2026-103922?

Upgrade @capacitor/android to a fixed version for your release line: 6.2.2, 7.6.9, 8.4.3 or 8.5.1.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-103922 being exploited?

There is no known exploitation of CVE-2026-103922 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-rvm3-566m-v7fv.