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CVE-2026-47193— OpenProject: Journal diff endpoint bypasses object, journal, and field visibility checks

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的项目管理软件。 OPF OpenProject 17.3.3之前版本和17.4.0版本至17.4.1之前版本存在安全漏洞，该漏洞源于journal diff端点未强制对象和字段可见性，可能泄露隐藏的历史字段值。

CVSS 7.5 · High EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 2

VendorProduct Version RangeStatus
opf openproject < 17.3.3 affected
>= 17.4.0, < 17.4.1 affected
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I. Basic Information for CVE-2026-47193

Vulnerability Information
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Vulnerability Title
OpenProject: Journal diff endpoint bypasses object, journal, and field visibility checks
Source: CVE Program / CVE List V5
Vulnerability Description
OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, the journal diff endpoint discloses hidden historical field values without enforcing object and field visibility. This vulnerability is fixed in 17.3.3 and 17.4.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
OPF OpenProject 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
opf openproject是opf的项目管理软件。 OPF OpenProject 17.3.3之前版本和17.4.0版本至17.4.1之前版本存在安全漏洞，该漏洞源于journal diff端点未强制对象和字段可见性，可能泄露隐藏的历史字段值。
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 < 17.3.3 -

II. Public POCs for CVE-2026-47193

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III. Intelligence Information for CVE-2026-47193

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Vendor Advisories for CVE-2026-47193 (1)

Same Patch Batch · opf · 2026-06-26 · 17 CVEs total

CVE-2026-52782 9.9 CRITICAL OpenProject: IDOR through /projects/<A>/settings/project_storages/<A_ps_id> via PATCH para
CVE-2026-52785 9.9 CRITICAL OpenProject: SQL injection in timestamps functionality
CVE-2026-46386 9.9 CRITICAL OpenProject: Pre-authentication RCE in openproject/openproject Docker image via default `S
CVE-2026-52780 9.6 CRITICAL OpenProject: Cache store poisoning leads to Remote Code Execution (RCE)
CVE-2026-52784 8.8 HIGH OpenProject: CSRF on TARGET through /users/:id via POST parameter "user[admin]"
CVE-2026-52783 8.2 HIGH OpenProject: Information Disclosure (cleartext storage of data) on localhost through memca
CVE-2026-44734 6.5 MEDIUM OpenProject: Improper Access Control on OpenProject through the POST request to /projects/
CVE-2026-44736 6.5 MEDIUM OpenProject: Relations API Filter Bypasses Visibility Scope, Leaking Cross-Project Work Pa
CVE-2026-44735 6.5 MEDIUM OpenProject: Shares API Information Disclosure
CVE-2026-52781 6.4 MEDIUM OpenProject: Stored XSS on openproject.example.com through /api/v3/projects/{project}/work
CVE-2026-44733 5.9 MEDIUM OpenProject: Business Logic Error on OpenProject through PATCH request to /api/v3/users/me
CVE-2026-44696 5.7 MEDIUM OpenProject: Stored CSS injection via Sanitize::Config::RELAXED[:css] enables phishing ove
CVE-2026-52779 5.4 MEDIUM OpenProject: Cross-project authorization bypass allows deleting public Calendar and Team P
CVE-2026-49355 4.3 MEDIUM OpenProject: Private work package data disclosure through single meeting agenda item API
CVE-2026-44731 4.3 MEDIUM OpenProject: Improper Access Control on OpenProject through /projects/[projectName]/meetin
CVE-2026-44732 4.3 MEDIUM OpenProject: IDOR on OpenProject through /api/v3/documents/{id} via PATCH parameter "proje

IV. Related Vulnerabilities

Same product: openproject
Same vendor: opf
Same weakness: CWE-200

V. Comments for CVE-2026-47193

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