CVE-2026-67528

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/opf/openproject/commit/a13fa079bc8040449570384c19f2d98f637179f1
https://github.com/opf/openproject/releases/tag/v17.6.0
https://github.com/opf/openproject/security/advisories/GHSA-wr3w-qchj-p4cm

Configurations

No configuration.

History

23 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) OpenProject es un software de gestión de proyectos de código abierto basado en la web. Antes de la versión 17.6.0, GET /API/v3/custom_options/:id resolvía registros de CustomOption por ID numérico global y permitía opciones de UserCustomField y GroupCustomField sin verificar visible(current_user), por lo que los usuarios autenticados no administradores podían enumerar IDs de opciones personalizadas secuenciales y leer etiquetas pertenecientes a campos personalizados de usuario o grupo admin_only. Este problema está solucionado en la versión 17.6.0.

Information

Published : 2026-07-30 20:18

Updated : 2026-10-23 22:10

NVD link : CVE-2026-67528

Mitre link : CVE-2026-67528

CVE.ORG link : CVE-2026-67528

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

{"id": "CVE-2026-67528", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-67528", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-31T23:06:08.257632Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "opf", "product": "openproject", "versions": [{"status": "affected", "version": "< 17.6.0"}]}]}], "published": "2026-07-30T20:18:14.613", "references": [{"url": "https://github.com/opf/openproject/commit/a13fa079bc8040449570384c19f2d98f637179f1", "source": "security-advisories@github.com"}, {"url": "https://github.com/opf/openproject/releases/tag/v17.6.0", "source": "security-advisories@github.com"}, {"url": "https://github.com/opf/openproject/security/advisories/GHSA-wr3w-qchj-p4cm", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "OpenProject es un software de gesti\u00f3n de proyectos de c\u00f3digo abierto basado en la web. Antes de la versi\u00f3n 17.6.0, GET /API/v3/custom_options/:id resolv\u00eda registros de CustomOption por ID num\u00e9rico global y permit\u00eda opciones de UserCustomField y GroupCustomField sin verificar visible(current_user), por lo que los usuarios autenticados no administradores pod\u00edan enumerar IDs de opciones personalizadas secuenciales y leer etiquetas pertenecientes a campos personalizados de usuario o grupo admin_only. Este problema est\u00e1 solucionado en la versi\u00f3n 17.6.0."}], "lastModified": "2026-10-23T22:10:00.160", "sourceIdentifier": "security-advisories@github.com"}