CVE-2022-41952: PYSEC-2026-663 - Uncontrolled Resource Consumption in Matrix Synapse

CVE-2022-41952 · Severity: low · CVSS 3.1 · Published 2026-07-02

Uncontrolled Resource Consumption in Matrix Synapse

Technologies: matrix-synapse (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2022-41952 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2022-41952 being exploited in the wild.
How severe is CVE-2022-41952?
Low severity, with a CVSS score of 3.1, published 2 July 2026.
Which products and versions are affected?
matrix-synapse (PyPI) ECOSYSTEM:introduced=0,fixed=1.53.0.
Is there a fix for CVE-2022-41952?
Yes. matrix-synapse (PyPI): upgrade to 1.53.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2022-41952?
Check whether you run matrix-synapse (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • matrix-synapse (PyPI): upgrade to 1.53.0 or later
    pip install "matrix-synapse>=1.53.0"

Affected products

  • matrix-synapse (PyPI) ECOSYSTEM:introduced=0,fixed=1.53.0

Identifiers

  • CVE-2022-41952
  • GHSA-4822-jvwx-w47h
  • PYSEC-2026-663

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.