Auth bypass in Wekan
CVE-2026-30846
Wekan is an open source kanban tool built with Meteor. In versions 8.31.0 through 8.33, the globalwebhooks publication exposes all global webhook integrations—including sensitive url and token fields—without performing any authentication check on the server side. Although the subscription is normally invoked from the admin settings page, the server-side publication has no access control, meaning any DDP client, including unauthenticated ones, can subscribe and receive the data. This allows an unauthenticated attacker to retrieve global webhook URLs and authentication tokens, potentially enabling unauthorized use of those webhooks and access to connected external services. This issue has been fixed in version 8.34.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (46.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.006 · change: +0.003
Affected products
- Wekan — versions >= 8.31.0, < 8.34
- Wekan Project
Weakness classification (CWE)
References
- securitylab.github.com/advisories/GHSL-2026-037_Wekan/ (Third Party Advisory)
- github.com/wekan/wekan/commit/1ee9b2e917104f54c035f6426169a28fedecbdb6 (Patch)
- github.com/wekan/wekan/releases/tag/v8.34 (Release Notes)
Frequently asked questions
- What is CVE-2026-30846?
- CVE-2026-30846 is a high-severity vulnerability in Wekan, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-03-06.
- How severe is CVE-2026-30846?
- High severity. CVSS v3 base score is 7.5 out of 10.