Server-Side Request Forgery (SSRF) in Wekan - CVE-2026-68558
Published: July 28, 2026 / Updated: August 21, 2026
Vulnerability identifier: #VU139851
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:N/SA:N]
CVE-ID: CVE-2026-68558
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform server-side request forgery against internal, loopback, or link-local services.
The vulnerability exists due to improper request validation in the outgoing-webhook URL validator in models/integrations.js when processing webhook URLs that use DNS-resolving hostnames. A remote user can supply a crafted webhook URL whose hostname resolves to a blocked address to perform server-side request forgery against internal, loopback, or link-local services.
The webhook send path does not re-validate the resolved IP address, and the issue is exploitable by a board admin on their own board without user interaction.
Affected software
Wekan
How to mitigate CVE-2026-68558
Install security update from vendor's website.
Wekan - update to 9.74