What is CVE-2025-23197?

CVE-2025-23197 is a medium-severity vulnerability in Matrix-Org Matrix-Hookshot, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 6.5/10. Published 2025-01-27.

How severe is CVE-2025-23197?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Matrix-Org Matrix-Hookshot

CVE-2025-23197

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.

EPSS: 0.004 (35.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Matrix-org Matrix-hookshot — versions >= 6.0.0, < 6.0.2, < 5.4.2

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-23197?: CVE-2025-23197 is a medium-severity vulnerability in Matrix-Org Matrix-Hookshot, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 6.5/10. Published 2025-01-27.
How severe is CVE-2025-23197?: Medium severity. CVSS v3 base score is 6.5 out of 10.