CVE-2023-28103: Prototype Pollution in matrix-react-sdk
Summary
CVE-2023-28103: Prototype pollution in matrix-react-sdk. Affects matrix-react-sdk versions < 3.69.0. Fixed in 3.69.0. How to fix ↓
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Background
matrix-react-sdk is an npm package that provides a React-based SDK for building Matrix clients. It is used to develop web applications that interact with the Matrix communication protocol. The package allows developers to create Matrix chat interfaces and integrate them into their applications. However, matrix-react-sdk is vulnerable to prototype pollution, which can lead to denial of service and potential program logic issues.
Vulnerability Detail
The vulnerability in matrix-react-sdk arises from certain configurations that allow remote servers to send data containing special strings in key locations. This can result in modifications to the Object.prototype, disrupting the functionality of matrix-react-sdk. The impact of this vulnerability includes denial of service and the potential for affecting program logic. It is important to note that this vulnerability is part 2 of the overall vulnerability, with part 1 being covered by CVE-2022-36060 / GHSA-2x9c-qwgf-94xr. The vulnerability has been patched in matrix-react-sdk version 3.69.0.
How To Fix
Latest published version: 3.114.0 as of 23 Oct 2026
npm install matrix-react-sdk@3.114.0Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
3.69.0
This is the first release that contains the fix.
npm install matrix-react-sdk@3.69.0Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There are no known workarounds for this vulnerability. It is essential to update to the patched version of matrix-react-sdk to mitigate the risk.
Conclusion
The vulnerability in matrix-react-sdk can lead to denial of service and potential program logic issues. It is crucial to update to the patched version (3.69.0) of matrix-react-sdk to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for matrix-react-sdk →
FAQ
matrix-react-sdk is an npm package that provides a React-based SDK for building Matrix clients. It allows developers to create Matrix chat interfaces and integrate them into their applications.
Prototype pollution is a vulnerability that occurs when an attacker can modify the prototype of an object, leading to unexpected behavior and potential security issues.
The impact of this vulnerability includes denial of service and potential program logic issues in applications that use matrix-react-sdk.
To fix this vulnerability, update the matrix-react-sdk package to version 3.69.0 or later.
There are no known workarounds for this vulnerability. Updating to the patched version is the recommended solution.
References
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