High

matrix-react-sdk Prototype pollution vulnerability

  • Disclosed: 28.03.2023
  • Updated: 11.10.2026 10:22

Impact

Events sent with special strings in key places can temporarily disrupt or impede the matrix-react-sdk from functioning properly, such as by causing room or event tile crashes. The remainder of the application can appear functional, though certain rooms/events will not be rendered.

Patches

This is fixed in matrix-react-sdk 3.53.0

Workarounds

There are no workarounds. Please upgrade immediately.

References

https://learn.snyk.io/lessons/prototype-pollution/javascript/

For more information

If you have any questions or comments about this advisory please email us at security at matrix.org.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package matrix-react-sdk < 3.53.0 3.53.0

References

CVSS score 7.2/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-1321
Platform
npm
Package
matrix-react-sdk
Disclosed
28.03.2023
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-2x9c-qwgf-94xr - CC BY 4.0

Vulnerability history: matrix-react-sdk

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
8
First → latest
03.2021 10.2024
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 4
  • Medium 3
  • Low 1

Disclosures per year

  1. 2021: 2
  2. 2022: 0
  3. 2023: 4
  4. 2024: 2
  5. 2025: 0
  6. 2026: 0
  1. Medium · 6.1 CVE-2023-37259 >= 3.32.0, < 3.76.0 3.76.0
  2. High · 8.2 CVE-2023-30609 < 3.71.0 3.71.0
  3. High · 8.2 CVE-2023-28103 < 3.69.0 3.69.0
  4. matrix-react-sdk Prototype pollution vulnerability this entry
    High · 7.2 CVE-2022-36060 < 3.53.0 3.53.0
  5. Medium · 4.2 CVE-2021-32622 < 3.21.0 3.21.0

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