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TI-2025-16982 Aliases CVE-2025-23197

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

Priority LOW 29CWE-754Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00471 41st percentileScored 2026-11-07
Fix Fixed matrix-hookshot (matrix-org): 6.0.2, 5.4.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
matrix-orgmatrix-hookshot6.0.0 to before 6.0.2; before 5.4.26.0.2, 5.4.2Patch availableCNA
  • matrix-hookshot Vendormatrix-org Affected 6.0.0 to before 6.0.2; before 5.4.2 Fixed in 6.0.2, 5.4.2 Patch available CNA

Remediation

  • Fix · CNA matrix-hookshot (matrix-org) Fixed in 6.0.2, 5.4.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-23197

References

Other 2

  • TI-2023-20035 Sydent does not verify email server certificates CVSS 3.1CRITICAL 9.3
  • TI-2026-45046 Dendrite 0.13.8 SSRF via Unauthenticated Legacy Media Download Endpoint CVSS 4.0MEDIUM 6.9
  • TI-2026-45045 Dendrite 0.13.8 Improper Authorization via POST account/3pid/delete Endpoint CVSS 4.0HIGH 7.1
  • TI-2026-45047 Dendrite 0.13.8 syncapi /context Endpoint Post-Leave State Exposure CVSS 4.0MEDIUM 5.3
  • TI-2023-15617 Synapse Outgoing federation to specific hosts can be disabled by sending malicious invites CVSS 3.1MEDIUM 5.0
  • TI-2023-20039 matrix-appservice-irc IRC command injection via admin commands containing newlines CVSS 3.1CRITICAL 9.8
See all 115 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences