https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-02T13:42:42.777632+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2018-10657 CVE-2018-10657 2026-10-02T13:42:42.833876+00:00

Matrix Synapse before 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 2^63 - 1 render rooms unusable, related to federation/federation_base.py and handlers/message.py, as exploited in the wild in April 2018.

 https://vulnerability.circl.lu/vuln/ghsa-vmcc-4p4x-x7wg GHSA-vmcc-4p4x-x7wg — Matrix Synapse DoS 2026-10-02T13:42:42.834056+00:00

Affected: PyPI: matrix-synapse

Matrix Synapse before 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 2<sup>63</sup> - 1 render rooms unusable, related to `federation/federation_base.py` and `handlers/message.py`, as exploited in the wild in April 2018.