CVE-2026-30844 Wekan Vulnerable to SSRF through Lack of Validation or Filtering in Attachment URL Loading
Authenticated users can trigger SSRF via attachment URLs during board imports, allowing access to internal network services and sensitive metadata.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-30844?
CVE-2026-30844 is a critical server-side request forgery vulnerability in Wekan, published on 6 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Wekan is an open source kanban tool built with Meteor. Versions 8.32 and 8.33 are vulnerable to Server-Side Request Forgery (SSRF) via attachment URL loading. During board import in Wekan, attachment URLs from user-supplied JSON data are fetched directly by the server without any URL validation or filtering, affecting both the Wekan and Trello import flows. The parseActivities() and parseActions() methods extract user-controlled attachment URLs, which are then passed directly to Attachments.load() for download with no sanitization. This Server-Side Request Forgery (SSRF) vulnerability allows any authenticated user to make the server issue arbitrary HTTP requests, potentially accessing internal network services such as cloud instance metadata endpoints (exposing IAM credentials), internal databases, and admin panels that are otherwise unreachable from outside the network. This issue has been fixed in version 8.34.
Weakness: CWE-918
Which versions are affected by CVE-2026-30844?
It affects 1 product.
Products include Wekan Project Wekan.
How do I fix CVE-2026-30844?
No fix has been published for CVE-2026-30844 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-30844 being exploited?
There is no known exploitation of CVE-2026-30844 in the wild and no public exploit code.
Other vulnerabilities in Wekan
- CVE-2026-30843 Wekan has Cross-Board IDOR in Custom Fields Update Endpoints
- CVE-2026-30847 Wekan Credential Leak via notificationUsers Publication Exposes Password Hashes and Session Tokens
- CVE-2025-65780 Missing authorization in n/a
- CVE-2026-30846 Wekan Exposes All Global Webhook Integrations through globalwebhooks Publication
- CVE-2026-25560 WeKan < 8.19 LDAP Authentication Filter Injection