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

@capacitor/android (npm), @capacitor/ios (npm), github.com/ionic-team/capacitor-swift-pm (swift), com.capacitorjs:core (maven)

### Impact Capacitor's WebView navigation guard validated only the **host and scheme** of a target URL, not its **path**. Because the internal HTTP proxy path (`/_capacitor_http_interceptor_`) is served at the application's own origin, a frame navigation to it was always treated as in-app navigation and allowed. Loading that path as a document caused the…

First seen: 5 Oct 2026
Last update: 5 Oct 2026, 22:53 UTC
Fixed in: @capacitor/android 6.2.2
@capacitor/android 7.6.9
@capacitor/ios 6.2.2
@capacitor/ios 7.6.9
github.com/ionic-team/capacitor-swift-pm 6.2.2
github.com/ionic-team/capacitor-swift-pm 7.6.9
com.capacitorjs:core 6.2.2
com.capacitorjs:core 7.6.9
@capacitor/android 8.5.1
@capacitor/ios 8.5.1
github.com/ionic-team/capacitor-swift-pm 8.5.1
com.capacitorjs:core 8.5.1
com.capacitorjs:core 8.4.3
@capacitor/android 8.4.3
@capacitor/ios 8.4.3
github.com/ionic-team/capacitor-swift-pm 8.4.3
Identifiers: CVE-2026-103922
CVSS: 9.3
Source: GitHub advisory
On the menu as: npm packages
Java
Apple
Android

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Capacitor Android and iOS: remote content can be loaded at the app origin via the internal HTTP proxy path
Severity: critical. Patch status: partial fix.
Affected: @capacitor/android (npm), @capacitor/ios (npm), github.com/ionic-team/capacitor-swift-pm (swift), com.capacitorjs:core (maven)
Fixed in: @capacitor/android 6.2.2, @capacitor/android 7.6.9, @capacitor/ios 6.2.2, @capacitor/ios 7.6.9, github.com/ionic-team/capacitor-swift-pm 6.2.2, github.com/ionic-team/capacitor-swift-pm 7.6.9, com.capacitorjs:core 6.2.2, com.capacitorjs:core 7.6.9, @capacitor/android 8.5.1, @capacitor/ios 8.5.1, github.com/ionic-team/capacitor-swift-pm 8.5.1, com.capacitorjs:core 8.5.1, com.capacitorjs:core 8.4.3, @capacitor/android 8.4.3, @capacitor/ios 8.4.3, github.com/ionic-team/capacitor-swift-pm 8.4.3
Ids: CVE-2026-103922

### Impact Capacitor's WebView navigation guard validated only the **host and scheme** of a target URL, not its **path**. Because the internal HTTP proxy path (`/_capacitor_http_interceptor_`) is served at the application's own origin, a frame navigation to it was always treated as in-app navigation and allowed. Loading that path as a document caused the…

## Steps
1. Search every lockfile and manifest (package-lock.json, yarn.lock, pnpm-lock.yaml, requirements*.txt, poetry.lock, uv.lock, composer.lock, go.sum, Cargo.lock, Gemfile.lock) for `@capacitor/android`, `@capacitor/ios`, `github.com/ionic-team/capacitor-swift-pm`, `com.capacitorjs:core`. For each hit, compare the installed version with the fix on the same major line: @capacitor/android 6.2.2, @capacitor/android 7.6.9, @capacitor/ios 6.2.2, @capacitor/ios 7.6.9, github.com/ionic-team/capacitor-swift-pm 6.2.2, github.com/ionic-team/capacitor-swift-pm 7.6.9, com.capacitorjs:core 6.2.2, com.capacitorjs:core 7.6.9, @capacitor/android 8.5.1, @capacitor/ios 8.5.1, github.com/ionic-team/capacitor-swift-pm 8.5.1, com.capacitorjs:core 8.5.1, com.capacitorjs:core 8.4.3, @capacitor/android 8.4.3, @capacitor/ios 8.4.3, github.com/ionic-team/capacitor-swift-pm 8.4.3. If it's lower, give the exact upgrade command for the package manager this repo uses.
2. There is only a partial fix. Until one ships: ### Impact Capacitor's WebView navigation guard validated only the **host and scheme** of a target URL, not its **path**. Because the internal HTTP proxy path (`/_capacitor_http_interceptor_`) is served at the application's own origin, a frame navigation to it was always treated as in-app navigation and allowed. Loading that path as a document caused the…

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-103922") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://github.com/advisories/GHSA-rvm3-566m-v7fv https://github.com/ionic-team/capacitor/commit/430356a91e1419fc66862dc09835081aa501677e https://github.com/ionic-team/capacitor/commit/745b5f805bf77bc6463977cc7d718cd9de44ccbc https://github.com/ionic-team/capacitor/security/advisories/GHSA-rvm3-566m-v7fv https://nvd.nist.gov/vuln/detail/CVE-2026-103922
https://pwned.coffee/i/capacitor-android-and-ios-remote-content-can-be-loaded-a-cve-2026-103922

Sources

Totalone very hot coffee