Auth bypass in Matrix Synapse

CVE-2023-32682

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. In affected versions it may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are…

Vulnerability class: Broken Authentication

EPSS: 0.008 (51.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-32682?
CVE-2023-32682 is a medium-severity vulnerability in Matrix Synapse, classified under Improper Authentication. CVSS score: 5.4/10. Published 2023-06-06.
How severe is CVE-2023-32682?
Medium severity. CVSS v3 base score is 5.4 out of 10.