Input validation error in Wekan - #VU140828
Published: August 3, 2026
Vulnerability identifier: #VU140828
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information from internal services.
The vulnerability exists due to improper input validation in attachment URL validation and webhook delivery SSRF guard when processing user-supplied URLs. A remote user can supply a URL using an IPv6 transition address that embeds a private IPv4 destination to disclose sensitive information from internal services.
On affected deployments, the issue can expose responses from cloud metadata endpoints and other reachable RFC 1918, loopback, or link-local hosts.
Affected software
Wekan
Remediation
Install security update from vendor's website.
Wekan - update to 10.57