CVE-2026-67528

MediumCVSS 4.3/10Last modified Oct 23, 2026

Description

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/custom_options/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visible(current_user), so authenticated non-admin users could enumerate sequential custom option ids and read labels belonging to admin_only user or group custom fields. This issue is fixed in 17.6.0.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-863

Affected software

Vendor	Product	Versions
opf	openproject	< 17.6.0

References

Timeline

Published: Jul 30, 2026
Last modified: Oct 23, 2026
NVD status: Deferred

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