CVE-2026-55644 (GCVE-0-2026-55644)

Vulnerability from cvelistv5 – Published: 2026-10-19 17:54 – Updated: 2026-10-19 17:54
VLAI
Title
Element X iOS: io.element.call deeplink allows attacker-controlled HTTPS origin and may grant mic/camera to that origin
Summary
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.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7660 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
element-hq element-x-ios Affected: < 26.05.0
guessed Create a notification for this product.
Show details on NVD website
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        }
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        {
          "name": "https://github.com/element-hq/element-x-ios/releases/tag/release/26.05.0",
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          "url": "https://github.com/element-hq/element-x-ios/releases/tag/release/26.05.0"
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      "source": {
        "advisory": "GHSA-54w7-rw44-49m7",
        "discovery": "UNKNOWN"
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      "title": "Element X iOS: io.element.call deeplink allows attacker-controlled HTTPS origin and may grant mic/camera to that origin"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-55644",
    "datePublished": "2026-10-19T17:54:58.499Z",
    "dateReserved": "2026-06-16T23:52:12.058Z",
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    "state": "PUBLISHED"
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      "percentile": "0.21783"
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          }
        ],
        "id": "CVE-2026-55644",
        "lastModified": "2026-10-19T21:14:14.150",
        "metrics": {
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                "modifiedAttackRequirements": "NOT_DEFINED",
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                "modifiedPrivilegesRequired": "NOT_DEFINED",
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                "privilegesRequired": "NONE",
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}



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