SB2026090109 - Denial of service in Gotify Server



SB2026090109 - Denial of service in Gotify Server

Published: September 1, 2026

Security Bulletin ID SB2026090109
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Operation on a Resource after Expiration or Release (CVE-ID: N/A)

CWE-ID: CWE-672 - Operation on a Resource after Expiration or Release

CVSSv4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the WebSocket stream module can close its underlying message channel prematurely. A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.