Linux Distros Unpatched Vulnerability : CVE-2021-21274

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Synapse is a Matrix reference homeserver written in python pypi package matrix-synapse. Matrix is an ecosystem for open federated Instant Messaging and VoIP. In...

CVE-2025-31126 Element X iOS allows the entity in control of the well-known file to break the confidentiality of embedded Element Call

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 ...

CVE-2025-31127 Element X Android allows the entity in control of the well-known file to break the confidentiality embedded Element Call

Element X Android is a Matrix Android Client provided by element.io. In Element X Android versions between 0.4.16 and 25.03.3, 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. Thi...

Denial Of Service (DoS)

matrix-synapse is vulnerable to denial of service DoS. The vulnerability exists as a malicious homeserver could redirect requests to their .well-known file to a large file...

CVE-2021-21274

Synapse is a Matrix reference homeserver written in python pypi package matrix-synapse. Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.25.0, a malicious homeserver could redirect requests to their .well-known file to a large file. This can lead t...