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CVE-2026-68558— Wekan: SSRF filter bypass via DNS-resolving hostname in outgoing webhooks (incomplete fix of CVE-2026-53446)

Quick assessment

Affected
wekan wekan
Exploitation
Public or AI PoC available; prioritize validation
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 8.36版本至9.74之前版本存在服务端请求伪造漏洞，该漏洞源于对外发webhook集成URL验证不充分，可能导致服务端请求伪造攻击。

CVSS 8.5 · High EPSS 0.30% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
wekan wekan >= 8.36, < 9.74 affected
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I. Basic Information for CVE-2026-68558

Vulnerability Information
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Vulnerability Title
Wekan: SSRF filter bypass via DNS-resolving hostname in outgoing webhooks (incomplete fix of CVE-2026-53446)
Source: CVE Program / CVE List V5
Vulnerability Description
Wekan is open source kanban built with Meteor. From 8.36 until 9.74, the outgoing webhook Integration URL validator in models/integrations.js checked only the literal URL.hostname against regular expressions, so DNS names such as 169-254-169-254.nip.io passed that first-line check. The delivery path's fetchSafe guard already blocked the reported IPv4 destination, but its separate IPv4-only resolver and duplicated blocklist created inconsistent all-address-family enforcement and drift risk between input-time and connection-time validation. Version 9.74 makes server/lib/ssrfGuard.js resolve all addresses with `dns.lookup({ all: true })`, validate every result through the shared isIpBlocked logic, pin the connection, and block redirects. This issue is fixed in version 9.74.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
WeKan 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WeKan是WeKan团队的一款项目管理软件。 WeKan 8.36版本至9.74之前版本存在服务端请求伪造漏洞，该漏洞源于对外发webhook集成URL验证不充分，可能导致服务端请求伪造攻击。
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 >= 8.36, < 9.74 -

II. Public POCs for CVE-2026-68558

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9500 chars
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In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-68558

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Patches & Fixes for CVE-2026-68558 (1)

Vendor Advisories for CVE-2026-68558 (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-2026-68560 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-2026-68901 6.5 MEDIUM WeKan Board Export REST Endpoints: NULL Pointer Dereference on Invalid authToken Leads to
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-918

V. Comments for CVE-2026-68558

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