CVE-2026-30236

OpenProject users that are not project members can be used to calculate Labor Budget, leaking their global hourly rate

Published Mar 11, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

OpenProject is an open-source, web-based project management software. Prior to 17.2.0, when editing a project budget and planning the labor cost, it was not checked that the user that was planned in the budget is actually a project member. This exposed the user's default rate (if one was set up) to users that should only see that information for project members. Also, the endpoint that handles the pre-calculation for the frontend to display a preview of the costs, while it was being entered, did not properly validate the membership of the user as well. This also allowed to calculate costs with the default rate of non-members. This vulnerability is fixed in 17.2.0.

Analysis

Technical impact

The vulnerability in OpenProject allows a user to include a non‑member in a project budget or preview calculation without the system verifying that the user is actually a member of the project. As a result, the system exposes the default hourly rate of the non‑member, leaking individualized cost information. This weakness is classified as CWE‑863, a missing permission check that permits unauthorized data exposure.

Affected Systems

All OpenProject deployments running a version earlier than 17.2.0 are susceptible. This includes both self‑hosted and cloud‑hosted installations that use the project budget editing or preview features.

Risk and Exploitability

The CVSS score of 4.3 indicates low severity, and the EPSS score is below 1%, suggesting a very low likelihood of exploitation. The vulnerability is not listed in the CISA KEV catalog. Attackers who have authenticated access to budget editing or preview endpoints and the appropriate permissions can supply the identifier of a non‑member user to retrieve that user’s default rate, thereby compromising confidential cost data.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

opf

openproject

affected

Version	Status	Constraints
`< 17.2.0`	affected	—

Configuration 1 [-]

cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:*

No data.

Vendor Product Versions

Opf

Openproject

Version	Status	Scheme	Platform
`[0,17.2.0)`	affected	semver	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade OpenProject to version 17.2.0 or later to enforce membership checks during budget calculations.
Verify that the upgrade prevents inclusion of non‑member users in budget edits or preview calculations.
Review user accounts to ensure default hourly rates are not exposed to unauthorized staff.
Monitor access logs for repeated attempts to query budget endpoints with non‑member identifiers and apply additional access controls if necessary.

Generated by OpenCVE AI on March 20, 2026 at 17:06 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.204% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/opf/openproject/security/advisories/GHSA-p747-569x-3v3f

History

Mar 13, 2026 7:15 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Openproject Openproject openproject
CPEs		cpe:2.3:a:openproject:openproject::::::::
Vendors & Products		Openproject Openproject openproject

Mar 12, 2026 10:15 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Opf Opf openproject
Vendors & Products		Opf Opf openproject

Mar 11, 2026 6:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mar 11, 2026 4:30 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		OpenProject is an open-source, web-based project management software. Prior to 17.2.0, when editing a project budget and planning the labor cost, it was not checked that the user that was planned in the budget is actually a project member. This exposed the user's default rate (if one was set up) to users that should only see that information for project members. Also, the endpoint that handles the pre-calculation for the frontend to display a preview of the costs, while it was being entered, did not properly validate the membership of the user as well. This also allowed to calculate costs with the default rate of non-members. This vulnerability is fixed in 17.2.0.
Title		OpenProject users that are not project members can be used to calculate Labor Budget, leaking their global hourly rate
Weaknesses		CWE-863
References		https://github.com/opf/openproject/security/advisories/GHSA-p747-569x-3v3f
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}`