Resource exhaustion in Matrix Synapse
CVE-2023-45129
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Prior to version 1.94.0, a malicious server ACL event can impact performance temporarily or permanently leading to a persistent denial of serv…
EPSS: 0.012 (63.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Matrix Synapse
- Matrix-org Synapse — versions < 1.94.0
- Fedoraproject Fedora — versions 37, 38
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (Mailing List)
- security-advisories@github.com (Mailing List)
- security-advisories@github.com
- security-advisories@github.com
Frequently asked questions
- What is CVE-2023-45129?
- CVE-2023-45129 is a medium-severity vulnerability in Matrix Synapse, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.9/10. Published 2023-10-10.
- How severe is CVE-2023-45129?
- Medium severity. CVSS v3 base score is 4.9 out of 10.