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CVE-2026-68901— WeKan Board Export REST Endpoints: NULL Pointer Dereference on Invalid authToken Leads to Uncaught Exception / Remote Denial of Service

Quick assessment

Affected
wekan wekan
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WeKan是WeKan团队的一款项目管理软件。 WeKan 10.38之前版本存在异常处理不当漏洞，该漏洞源于在models/export.js和models/exportExcel.js中未检查ReactiveCache.getUser()返回值，攻击者可通过受控的authToken查询参数触发，可能导致进程终止并拒绝服务。

CVSS 6.5 · Medium EPSS 0.38% · P31

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
wekan wekan < 10.38 affected
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I. Basic Information for CVE-2026-68901

Vulnerability Information
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Vulnerability Title
WeKan Board Export REST Endpoints: NULL Pointer Dereference on Invalid authToken Leads to Uncaught Exception / Remote Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
Wekan is open source kanban built with Meteor. Prior to 10.38, the /api/boards/:boardId/export, /api/boards/:boardId/attachments/:attachmentId/export, /api/boards/:boardId/export/csv, and /api/boards/:boardId/exportExcel handlers in models/export.js and models/exportExcel.js looked up a user from the attacker-controlled authToken query parameter and immediately called user._id.toString() without checking whether ReactiveCache.getUser() returned undefined. A request for a private board with an unknown token therefore threw a TypeError from an asynchronous route, producing an unhandled rejection that could terminate the Wekan process and deny service to all users. Version 10.38 adds a 401 guard after every export token lookup and wraps export handlers with safeRoute() so unexpected exceptions become controlled responses. This issue is fixed in version 10.38.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
WeKan 异常处理不当漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WeKan是WeKan团队的一款项目管理软件。 WeKan 10.38之前版本存在异常处理不当漏洞，该漏洞源于在models/export.js和models/exportExcel.js中未检查ReactiveCache.getUser()返回值，攻击者可通过受控的authToken查询参数触发，可能导致进程终止并拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
wekan wekan < 10.38 -

II. Public POCs for CVE-2026-68901

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III. Intelligence Information for CVE-2026-68901

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Patches & Fixes for CVE-2026-68901 (1)

Vendor Advisories for CVE-2026-68901 (1)

Vendor Pages for CVE-2026-68901 (1)

Same Patch Batch · wekan · 2026-08-19 · 7 CVEs total

CVE-2026-68561 8.8 HIGH Wekan: a low-privilege board member escalates to board admin and takes over a private boar
CVE-2026-68899 8.7 HIGH Wekan: File Upload MIME Type Validation Bypass — Stored XSS via Missing System Binary Fall
CVE-2026-68558 8.5 HIGH Wekan: SSRF filter bypass via DNS-resolving hostname in outgoing webhooks (incomplete fix
CVE-2026-68560 7.7 HIGH Wekan:hell Injection in External Antivirus Scanner Path via asyncExec
CVE-2026-68900 7.6 HIGH Wekan: Stored XSS in HTML board exports through a card-title second parse
CVE-2026-68559 6.5 MEDIUM Wekan: Broken access control in the Excel-export route (`/api/boards/:boardId/exportExcel`

IV. Related Vulnerabilities

Same product: wekan
Same vendor: wekan
Same weakness: CWE-476

V. Comments for CVE-2026-68901

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