Media Encryption Key Exposure in Element X iOS Client by Element
CVE-2025-31126

5.3MEDIUM

Key Information:

Vendor

Element-hq

Status
Element-x-iOS
Vendor
CVE Published:
3 April 2025

What is CVE-2025-31126?

Element X iOS, a Matrix client developed by Element, is susceptible to an issue where an entity controlling the element.json well-known file can, under specific conditions, access sensitive media encryption keys utilized during Element Calls. This flaw compromises the confidentiality of communication and has been addressed in version 25.03.8.

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Affected Version(s)

element-x-ios >= 1.6.13, < 25.03.8

References

https://github.com/element-hq/element-x-ios/security/advi...
x_refsource_CONFIRM
https://github.com/element-hq/element-meta/issues/2441
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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