High

Unauthenticated Global Webhook Disclosure in Wekan

IdentifiersCVE-2026-30846CWE-862

CVE-2026-30846 is an access-control vulnerability in Wekan, an open source kanban application built with Meteor. In Wekan versions 8.31.0 through 8.33, the server-side publication for global webhooks fails to enforce authentication or authorization checks. As a result, the globalwebhooks publication exposes all configured global webhook integrations, including sensitive URL and token fields, to any DDP client that subscribes to it. Although this subscription path is normally used from the administrative settings interface, the underlying server-side publication does not restrict access, allowing even unauthenticated clients to retrieve the data. The flaw results in disclosure of integration secrets and may enable unauthorized interaction with connected external services that trust those webhook credentials.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an unauthenticated attacker to enumerate and retrieve sensitive global webhook configuration data, including webhook endpoints and authentication tokens. Exposure of these secrets can enable unauthorized use of the affected webhook integrations, abuse of trusted automation paths, and potential access to or interaction with connected third-party services. The primary security impact is unauthorized disclosure of sensitive information, with possible downstream compromise of external integrations depending on how the exposed tokens are scoped and trusted.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, restrict access to the DDP interface to trusted users and networks, disable or minimize use of global webhooks where feasible, and monitor for unauthorized subscription activity or suspicious use of webhook integrations. As a precaution, rotate webhook tokens and any associated credentials, especially for integrations that grant access to external systems or trigger privileged workflows.

Remediation

Patch, then assume compromise.

Upgrade Wekan to version 8.34 or later, where the issue is fixed. Review all configured global webhook integrations for possible exposure during the vulnerable period, rotate any webhook tokens or related credentials that may have been disclosed, and validate the security posture of connected external services that relied on those secrets.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

Wekan ProjectWekanapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app

bugflationNews

May 6, 2026

GitHub Taskflow Agent produces 18 public CVEs across eight projects - Bugflation

A GitHub Security Lab-reported vulnerability affecting Wekan; the content only indicates it is part of a set of CVEs dominated by access-control and web-application logic defects.

What this page doesn’t show

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1