CVE-2025-31126— Element X iOS allows the entity in control of the well-known file to break the confidentiality of embedded Element Call
Quick assessment
Affected
element-hq element-x-ios
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Element X iOS是Element开源的一个基于 Matrix rust-sdk 的 SwiftUI 构建的 iOS 下一代 Matrix 客户端。 Element X iOS 1.6.13版本至25.03.7版本存在信息泄露漏洞，该漏洞源于element.json文件可能导致媒体加密密钥泄露。
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2025-31126
Vulnerability Information
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Vulnerability Title
Element X iOS allows the entity in control of the well-known file to break the confidentiality of embedded Element Call
Source: CVE Program / CVE List V5
Vulnerability Description
Element X iOS is a Matrix iOS Client provided by Element. In Element X iOS version between 1.6.13 and 25.03.7, the entity in control of the element.json well-known file is able, under certain conditions, to get access to the media encryption keys used for an Element Call call. This vulnerability is fixed in 25.03.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Element X iOS 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Element X iOS是Element开源的一个基于 Matrix rust-sdk 的 SwiftUI 构建的 iOS 下一代 Matrix 客户端。 Element X iOS 1.6.13版本至25.03.7版本存在信息泄露漏洞，该漏洞源于element.json文件可能导致媒体加密密钥泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| element-hq | element-x-ios | >= 1.6.13, < 25.03.8 | - |
|
II. Public POCs for CVE-2025-31126
| # | POC Description | Source Link | Shenlong Link |
|---|
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V. Comments for CVE-2025-31126
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