CVE-2025-23197 – matrix-hookshot has a Potential Denial of Service when Hookshot is configured with GitHub support

https://notcve.org/view.php?id=CVE-2025-23197

27 Jan 2025 — matrix-hookshot is a Matrix bot for connecting to external services like GitHub, GitLab, JIRA, and more. When Hookshot 6 version 6.0.1 or below, or Hookshot 5 version 5.4.1 or below, is configured with GitHub support, it is vulnerable to a Denial of Service (DoS) whereby it can crash on restart due to a missing check. The impact is greater to you untrusted users can add their own GitHub organizations to Hookshot in order to connect their room to a repository. This vulnerability is fixed in 6.0.2 and 5.4.2. • https://github.com/matrix-org/matrix-hookshot/commit/e51d8210233ac759e7f7dfebc2c4f1bf6ce94802 • CWE-754: Improper Check for Unusual or Exceptional Conditions •