Riskcovery

CVE-2026-103922

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

State
Published
Severity
9.3 Critical
Published
Oct 1, 2026
Updated
Oct 1, 2026
Reserved
Oct 1, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.19.3 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:NGitHub_M

Weaknesses

  • CWE-346 Origin Validation Error
  • CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')

Affected Products

ProductVersions
capacitorionic-team
  • >= 6.0.0, < 6.2.2Affected
  • >= 7.0.0, < 7.6.9Affected
  • >= 8.0.0, < 8.3.5Affected
  • >= 8.3.5, < 8.4.3Affected
  • >= 8.5.0, < 8.5.1Affected
android@capacitor
  • >= 8.5.0, < 8.5.1Affected
  • >= 8.3.5, < 8.4.3Affected
  • >= 8.0.0, < 8.3.5Affected
  • >= 7.0.0, < 7.6.9Affected
  • >= 6.0.0, < 6.2.2Affected
ios@capacitor
  • >= 8.5.0, < 8.5.1Affected
  • >= 8.3.5, < 8.4.3Affected
  • >= 8.0.0, < 8.3.5Affected
  • >= 7.0.0, < 7.6.9Affected
  • >= 6.0.0, < 6.2.2Affected
corecom.capacitorjs
  • >= 8.5.0, < 8.5.1Affected
  • >= 8.3.5, < 8.4.3Affected
  • >= 8.0.0, < 8.3.5Affected
  • >= 7.0.0, < 7.6.9Affected
  • >= 6.0.0, < 6.2.2Affected
github.com/ionic-team/capacitor-swift-pmswift
  • >= 8.5.0, < 8.5.1Affected
  • >= 8.3.5, < 8.4.3Affected
  • >= 8.0.0, < 8.3.5Affected
  • >= 7.0.0, < 7.6.9Affected
  • >= 6.0.0, < 6.2.2Affected

References

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