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CVE-2026-55095— OpenProject: Inplace-edit dialog exposes comments from hidden admin-only project custom fields

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.

OPF openproject是OPF基金会的一款项目管理系统。 OPF openproject 17.5.1及之前版本存在授权问题漏洞，该漏洞源于未正确实施admin_only可见性范围，可能导致经过身份验证的非管理员项目成员泄露隐藏的注释文本。

CVSS 5.3 · Medium EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
opf openproject < 17.6.0 affected
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I. Basic Information for CVE-2026-55095

Vulnerability Information
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Vulnerability Title
OpenProject: Inplace-edit dialog exposes comments from hidden admin-only project custom fields
Source: CVE Program / CVE List V5
Vulnerability Description
OpenProject is open-source, web-based project management software. In version 17.5.1 and earlier, an authenticated non-admin project member can request the inplace-edit dialog for a raw custom_field_ project attribute. The dialog path resolves the project custom field by its raw identifier without enforcing the normal admin_only visibility scope and renders the stored custom-field comment in read-only mode. This discloses hidden comment text but does not disclose the custom-field value or permit writes or mutation. This issue is reported as fixed in version 17.6.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
OPF openproject 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OPF openproject是OPF基金会的一款项目管理系统。 OPF openproject 17.5.1及之前版本存在授权问题漏洞，该漏洞源于未正确实施admin_only可见性范围，可能导致经过身份验证的非管理员项目成员泄露隐藏的注释文本。
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 < 17.6.0 -

II. Public POCs for CVE-2026-55095

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III. Intelligence Information for CVE-2026-55095

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Vendor Advisories for CVE-2026-55095 (1)

IV. Related Vulnerabilities

Same product: openproject
Same vendor: opf
Same weakness: CWE-862

V. Comments for CVE-2026-55095

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