CVE-2026-55644
CVE-2026-55644 · Element X iOS: io.element.call deeplink allows attacker-controlled HTTPS origin and may grant mic/camera to that origin
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Element X iOS is a Matrix iOS Client provided by Element. Element X iOS before version 26.05.0 fails to check the URL allowlist when parsing io.element.call://. If an attacker is able to trick the user into opening a maliciously crafted io.element.call:// URL, they are able to load an attacker-controlled origin inside the call screen's WKWebView which will be granted device microphone and camera permissions (provided the user has previously granted these permissions to Element X iOS). This issue has been patched in version 26.05.0.
CVSS 5.1 · Medium · EPSS 0.3%
- Published
- Updated
Affected products and versions
element-x-ios
- Versions
- < 26.05.0: Affected
No fix published
Original sources
- https://github.com/element-hq/element-x-ios/security/advisories/GHSA-54w7-rw44-49m7
- https://github.com/element-hq/element-x-ios/pull/5515
- https://github.com/element-hq/element-x-ios/commit/63592e48c1a1e47f75693045efd85a7d4468ea84
- https://github.com/element-hq/element-x-ios/releases/tag/release/26.05.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-55644