What is CVE-2023-32683?

CVE-2023-32683 is a low-severity vulnerability in Matrix Synapse, classified under Incorrect Authorization. CVSS score: 3.5/10. Published 2023-06-06.

How severe is CVE-2023-32683?

Low severity. CVSS v3 base score is 3.5 out of 10.

Auth bypass in Matrix Synapse

CVE-2023-32683

Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed or image URL can bypass the `url_preview_url_blacklist` setting potentially allowing server side request forgery or bypassing network…

Vulnerability class: Broken Access Control

EPSS: 0.006 (45.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.

Affected products

Matrix Synapse
Matrix-org Synapse — versions < 1.85.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)
security-advisories@github.com

Frequently asked questions

What is CVE-2023-32683?: CVE-2023-32683 is a low-severity vulnerability in Matrix Synapse, classified under Incorrect Authorization. CVSS score: 3.5/10. Published 2023-06-06.
How severe is CVE-2023-32683?: Low severity. CVSS v3 base score is 3.5 out of 10.