CVE-2025-48937 matrix-sdk-crypto vulnerable to sender of encrypted events being spoofed by homeserver administrator

matrix-rust-sdk is an implementation of a Matrix client-server library in Rust. matrix-sdk-crypto since version 0.8.0 and up to 0.11.0 does not correctly validate the sender of an encrypted event. Accordingly, a malicious homeserver operator can modify events served to clients, making those event...

CVE-2024-47824

matrix-react-sdk is react-based software development kit for inserting a Matrix chat/VOIP client into a web page. Starting in version 3.18.0 and before 3.102.0, matrix-react-sdk allows a malicious homeserver to potentially steal message keys for a room when a user invites another user to that roo...

CVE-2024-31208

Synapse is an open-source Matrix homeserver. A remote Matrix user with malicious intent, sharing a room with Synapse instances before 1.105.1, can dispatch specially crafted events to exploit a weakness in the V2 state resolution algorithm. This can induce high CPU consumption and accumulate...

CVE-2023-2739

A vulnerability classified as problematic was found in Gira HomeServer up to 4.12.0.220829 beta. This vulnerability affects unknown code of the file /hslist. The manipulation of the argument lst with the input debug%27" leads to cross site scripting. The attack can be initiated remotely. The...

[SECURITY] Fedora 42 Update: matrix-synapse-1.127.1-1.fc42

Matrix is an ambitious new ecosystem for open federated Instant Messaging and VoIP. Synapse is a reference "homeserver" implementation of Matrix from the core development team at matrix.org, written in Python/Twisted. It is intended to showcase the concept of Matrix and let folks see the spec in...

Linux Distros Unpatched Vulnerability : CVE-2022-39374

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the sa...

Linux Distros Unpatched Vulnerability : CVE-2024-52815

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Synapse is an open-source Matrix homeserver. Synapse versions before 1.120.1 fail to properly validate invites received over federation. This vulnerability allo...

Linux Distros Unpatched Vulnerability : CVE-2024-52805

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Synapse is an open-source Matrix homeserver. In Synapse before 1.120.1, multipart/form-data requests can in certain configurations transiently increase memory...

[SECURITY] Fedora 41 Update: matrix-synapse-1.118.0-4.fc41

Matrix is an ambitious new ecosystem for open federated Instant Messaging and VoIP. Synapse is a reference "homeserver" implementation of Matrix from the core development team at matrix.org, written in Python/Twisted. It is intended to showcase the concept of Matrix and let folks see the spec in...

[SECURITY] Fedora 40 Update: matrix-synapse-1.111.1-4.fc40

Matrix is an ambitious new ecosystem for open federated Instant Messaging and VoIP. Synapse is a reference "homeserver" implementation of Matrix from the core development team at matrix.org, written in Python/Twisted. It is intended to showcase the concept of Matrix and let folks see the spec in...

DEBIAN-CVE-2025-30355

Synapse is an open source Matrix homeserver implementation. A malicious server can craft events which, when received, prevent Synapse version up to 1.127.0 from federating with other servers. The vulnerability has been exploited in the wild and has been fixed in Synapse v1.127.1. No known...

UBUNTU-CVE-2025-30355

Synapse is an open source Matrix homeserver implementation. A malicious server can craft events which, when received, prevent Synapse version up to 1.127.0 from federating with other servers. The vulnerability has been exploited in the wild and has been fixed in Synapse v1.127.1. No known...

CVE-2025-30355

Synapse is an open source Matrix homeserver implementation. A malicious server can craft events which, when received, prevent Synapse version up to 1.127.0 from federating with other servers. The vulnerability has been exploited in the wild and has been fixed in Synapse v1.127.1. No known...

VulnCheck KEV: CVE-2025-30355

Synapse is an open source Matrix homeserver implementation. A malicious server can craft events which, when received, prevent Synapse version up to 1.127.0 from federating with other servers. The vulnerability has been exploited in the wild and has been fixed in Synapse v1.127.1. No known...

Linux Distros Unpatched Vulnerability : CVE-2022-39251

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Prior to version 19.7.0, an attacker cooperating with a malicious homeserver can construct...

Linux Distros Unpatched Vulnerability : CVE-2022-39250

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Matrix JavaScript SDK is the Matrix Client-Server software development kit SDK for JavaScript. Prior to version 19.7.0, an attacker cooperating with a malicious...

CVE-2022-39255

Matrix iOS SDK allows developers to build iOS apps compatible with Matrix. Prior to version 0.23.19, an attacker cooperating with a malicious homeserver can construct messages that legitimately appear to have come from another person, without any indication such as a grey shield. Additionally, a...

CVE-2022-39200

Dendrite is a Matrix homeserver written in Go. In affected versions events retrieved from a remote homeserver using the /getmissingevents path did not have their signatures verified correctly. This could potentially allow a remote homeserver to provide invalid/modified events to Dendrite via this...

CVE-2022-39257

Matrix iOS SDK allows developers to build iOS apps compatible with Matrix. Prior to version 0.23.19, an attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this m...

CVE-2022-39248

matrix-android-sdk2 is the Matrix SDK for Android. Prior to version 1.5.1, an attacker cooperating with a malicious homeserver can construct messages that legitimately appear to have come from another person, without any indication such as a grey shield. Additionally, a sophisticated attacker...