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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 Us

mediumCVSS 4.3CVE-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.

Details

Source
NVD Recent CVEs (US · database · site)
Severity
medium — CVSS 4.3
Published
2026-07-30
Last updated
2026-07-31
Exploitation
Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-67528

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-67528coverage & exploitation statusNVD · CVE.org

Recent advisories for OpenProject is open-source

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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