element-hq vulnerabilities (CVE)

CVE records published for element-hq, newest first. Follow to get an email when a new one appears.

17 results
5.9Medium
CVE-2026-62347

Element Call exposes shared passwords in logs

element-hq element-call

Element Call is a native Matrix video conferencing application. From 0.16.0 until 0.20.3, the standalone Element Call `SPA` logs the `password` URL query parameter. When a user submits an error report, called a rageshake, these logs are shared with the applic…

6.8Medium
CVE-2026-45078

Synapse CPU starvation (Denial of Service)

element-hq synapse

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing other users to be denied service. This vulnerability is fixed…

5.1Medium
CVE-2026-45076

Synapse pagination denial of service

element-hq synapse

Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full history to paginating clients. Clients could therefore fail t…

9.2Critical
CVE-2026-24044

ESS Community Helm Chart has a weak server key generation method

element-hq ess-helm; element-hq matrix-tools

Element Server Suite Community Edition (ESS Community) deploys a Matrix stack using the provided Helm charts and Kubernetes distribution. The ESS Community Helm Chart secrets initialization hook (using matrix-tools container before 0.5.7) is using an insecure…

5.3Medium
CVE-2025-61672

Synapse: Invalid device keys degrade federation functionality

element-hq synapse

Synapse is an open source Matrix homeserver implementation. Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking o…

5.1Medium
CVE-2025-27606

Element Android PIN autologout bypass

element-hq element-android

Element Android is an Android Matrix Client provided by Element. Element Android up to version 1.6.32 can, under certain circumstances, fail to logout the user if they input the wrong PIN more than the configured amount of times. An attacker with physical acc…