OPF OpenProject up to 17.5.x Time Entry Representer/Cost Entry Representer cost_entry_representer.rb information disclosure

Summaryinfo

A vulnerability was found in OPF OpenProject up to 17.5.x. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the file modules/costs/lib/api/v3/time_entries/time_entry_representer.rb/modules/costs/lib/api/v3/cost_entries/cost_entry_representer.rb of the component Time Entry Representer/Cost Entry Representer. The manipulation leads to information disclosure. This vulnerability is listed as CVE-2026-67529. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in OPF OpenProject up to 17.5.x. This issue affects an unknown function of the file modules/costs/lib/api/v3/time_entries/time_entry_representer.rb/modules/costs/lib/api/v3/cost_entries/cost_entry_representer.rb of the component Time Entry Representer/Cost Entry Representer. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/time_entries and GET /api/v3/cost_entries rendered _links.workPackage.title and _links.workPackage.href through associated_resource in modules/costs/lib/api/v3/time_entries/time_entry_representer.rb and modules/costs/lib/api/v3/cost_entries/cost_entry_representer.rb without checking WorkPackage.visible or view_work_packages, allowing users with view_time_entries or view_cost_entries to read private work package subjects and ids. This issue is fixed in 17.6.0.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-67529 since 07/29/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 17.6.0 eliminates this vulnerability.

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Productinfo

Type

• Project Management Software

Vendor

• OPF

Name

• OpenProject

Version

• 17.0
• 17.1
• 17.2
• 17.3
• 17.4
• 17.5

Website

• Product: https://github.com/opf/openproject/

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CPE 2.2info

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