Critical 9.3Published Mar 6, 2026

CVE-2026-30844Wekan Vulnerable to SSRF through Lack of Validation or Filtering in Attachment URL Loading

Updated under an hour ago (Oct 28, 2026, 12:23 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for Wekan

Exploited in the last 30 days

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.

CVSS: 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Wekan Wekan wekan:wekan (from the name)	from 8.32, < 8.34	CNA record
wekan_project wekan wekan_project:wekan	8.32; 8.33	NVD

References

References

https://securitylab.github.com/advisories/GHSL-2026-045_Wekan/	x-refsource-confirm, third-party-advisory
https://github.com/wekan/wekan/commit/62216e36c15f55d4ef6cb97313db3aa54fc77fe0	x-refsource-misc, patch
https://github.com/wekan/wekan/releases/tag/v8.34	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.