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CVE-2026-111919— Vikunja 0.22.0 before 2.7.0 Improper Access Revocation via Webhooks

Quick assessment

Affected
go-vikunja vikunja
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.

在版本 2.7.0 之前的 Vikunja 0.22.0 中存在一个访问权限撤销不当的漏洞，该漏洞允许已被移除的协作者继续通过其创建的 Webhook 接收项目数据。即使访问权限已被撤销，前协作者仍可通过其 Webhook 接收任务标题和描述，包括在其权限被撤销后创建的内容。

CVSS 6.5 · Medium EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
go-vikunja vikunja 0.22.0< 2.7.0 affected
2.7.0 unaffected
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I. Basic Information for CVE-2026-111919

Vulnerability Information
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Vulnerability Title
Vikunja 0.22.0 before 2.7.0 Improper Access Revocation via Webhooks
Source: CVE Program / CVE List V5
Vulnerability Description
Vikunja 0.22.0 before 2.7.0 contains an improper access revocation vulnerability that allows removed collaborators to keep receiving project data through webhooks they created. Former collaborators keep receiving task titles and descriptions through their webhook, including content created after their access was revoked.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
go-vikunja vikunja 0.22.0 ~ 2.7.0 -

II. Public POCs for CVE-2026-111919

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-111919

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Vendor Advisories for CVE-2026-111919 (2)

Same Patch Batch · go-vikunja · 2026-10-17 · 6 CVEs total

CVE-2026-111917 6.5 MEDIUM Vikunja 2.3.0 before 2.7.0 WebSocket Authentication Ignores Session Revocation
CVE-2026-111922 6.3 MEDIUM Vikunja 2.2.0 before 2.7.0 Permissive CORS Policy Trusting Localhost Origins
CVE-2026-111921 5.4 MEDIUM Vikunja 0.13.0 before 2.7.0 Incorrect Authorization in Link Share Deletion
CVE-2026-111918 5.4 MEDIUM Vikunja 1.0.0-rc0 before 2.7.0 Cross-Tenant Task Position Writes via Saved Filter Creation
CVE-2026-111920 4.3 MEDIUM Vikunja 2.6.0 Broken Access Control via Inherited Project Permissions

IV. Related Vulnerabilities

Same product: vikunja
Same vendor: go-vikunja
Same weakness: CWE-613

V. Comments for CVE-2026-111919

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