opf openproject up to 17.0.1 API Call data authenticity

Summaryinfo

A vulnerability was found in opf openproject up to 17.0.1. It has been declared as problematic. The affected element is an unknown function of the component API Call Handler. The manipulation results in data authenticity. This vulnerability is reported as CVE-2026-24775. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in opf openproject up to 17.0.1. Affected is some unknown processing of the component API Call Handler. The manipulation with an unknown input leads to a data authenticity vulnerability. CWE is classifying the issue as CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. This is going to have an impact on integrity, and availability. CVE summarizes:

OpenProject is an open-source, web-based project management software. In the new editor for collaborative documents based on BlockNote, OpenProject maintainers added a custom extension in OpenProject version 17.0.0 that allows to mention OpenProject work packages in the document. To show work package details, the editor loads details about the work package via the OpenProject API. For this API call, the extension to the BlockNote editor did not properly validate the given work package ID to be only a number. This allowed an attacker to generate a document with relative links that upon opening could make arbitrary `GET` requests to any URL within the OpenProject instance. This issue was patched in version version 0.0.22 of op-blocknote-extensions, which was shipped with OpenProject 17.0.2. If users cannot update immediately to version 17.0.2 of OpenProject, administrators can disable collaborative document editing in Settings -> Documents -> Real time collaboration -> Disable.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-24775 since 01/26/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 17.0.2 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Type

• Project Management Software

Vendor

• opf

Name

• openproject

Version

• 17.0.0
• 17.0.1

Website

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

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