CVE-2026-40896— OpenProject has Cross-Project Meeting Agenda Item Injection via Unscoped Section Lookup
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I. Basic Information for CVE-2026-40896
Vulnerability Information
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Vulnerability Title
OpenProject has Cross-Project Meeting Agenda Item Injection via Unscoped Section Lookup
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenProject is open-source, web-based project management software. Prior to version 17.3.0, a user with `manage_agendas` permission in any project can inject agenda items into meetings belonging to any other project on the instance — even projects they have no access to. No knowledge of the target project, meeting, or victim is required; the attacker can blindly spray items into every meeting on the instance by iterating sequential section IDs. Version 17.3.0 patches the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenProject 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenProject是OpenProject开源的一个基于Web的项目管理软件。 OpenProject 17.3.0之前版本存在安全漏洞，该漏洞源于拥有manage_agendas权限的用户可以向任意项目的会议中注入议程项，可能导致权限滥用。
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 |
|---|---|---|---|---|
| opf | openproject | < 17.3.0 | - |
II. Public POCs for CVE-2026-40896
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|---|
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- Update security fixes · opf/openproject@8f693a1 · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-40896
IV. Related Vulnerabilities
Same product: openproject
- CVE-2026-33667
OpenProject: 2FA OTP Verification Missing Rate Limiting - CVE-2026-34717
OpenProject: SQL Injection in Cost Reporting =n Operator via - CVE-2026-32703
OpenProject's repository files are served with the MIME type - CVE-2026-32698
OpenProject has a SQL Injection via Custom Field Name that c - CVE-2026-31974
Blind SSRF on OpenProject instance via webhooks
Same vendor: opf
- CVE-2026-33667
OpenProject: 2FA OTP Verification Missing Rate Limiting - CVE-2026-34717
OpenProject: SQL Injection in Cost Reporting =n Operator via - CVE-2026-32703
OpenProject's repository files are served with the MIME type - CVE-2026-32698
OpenProject has a SQL Injection via Custom Field Name that c - CVE-2026-31974
Blind SSRF on OpenProject instance via webhooks
Same weakness: CWE-367
- CVE-2026-42344
FastGPT: DNS rebinding TOCTOU bypass in isInternalAddress al - CVE-2026-44694
n8n-MCP: Authenticated SSRF in n8n-mcp webhook and API clien - CVE-2025-69233
Apache CloudStack: Domain/account resources limits not honor - CVE-2026-34354
Akamai Guardicore Platform Agent 安全漏洞 - CVE-2026-41002
VMware Spring Cloud Config 安全漏洞
V. Comments for CVE-2026-40896
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