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CVE-2026-22605— OpenProject is Vulnerable to Insecure Direct Object Reference in Meetings

Quick assessment

Affected
opf openproject
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.

OpenProject是OpenProject开源的一个基于Web的项目管理软件。 OpenProject 16.6.3之前版本存在访问控制错误漏洞，该漏洞源于访问控制不当，可能导致越权访问会议详情。

CVSS 4.3 · Medium EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-22605

Vulnerability Information
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Vulnerability Title
OpenProject is Vulnerable to Insecure Direct Object Reference in Meetings
Source: CVE Program / CVE List V5
Vulnerability Description
OpenProject is an open-source, web-based project management software. OpenProject versions prior to version 16.6.3, allowed users with the View Meetings permission on any project, to access meeting details of meetings that belonged to projects, the user does not have access to. This issue has been patched in version 16.6.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OpenProject 访问控制错误漏洞
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 16.6.3之前版本存在访问控制错误漏洞，该漏洞源于访问控制不当，可能导致越权访问会议详情。
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 < 16.6.3 -

II. Public POCs for CVE-2026-22605

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III. Intelligence Information for CVE-2026-22605

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Same Patch Batch · opf · 2026-01-10 · 6 CVEs total

CVE-2026-22600 9.1 CRITICAL OpenProject is Vulnerable to Arbitrary File Read via ImageMagick SVG Coder
CVE-2026-22602 3.5 LOW OpenProject is Vulnerable to User Enumeration via User ID
CVE-2026-22604 OpenProject is vulnerable to user enumeration via the change password function
CVE-2026-22601 OpenProject is Vulnerable to Code Execution in E-Mail function
CVE-2026-22603 OpenProject has no protection against brute-force attacks in the Change Password function

IV. Related Vulnerabilities

Same product: openproject
Same vendor: opf
Same weakness: CWE-284

V. Comments for CVE-2026-22605

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