What’s Vulnerable › Vulnerabilities

CVE-2026-67529: OpenProject: Private work package subject/identity disclosure through the global Time Entries and Cost Entries APIs (linked work package rendered without visibility check)

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-30 · updated 2026-10-23
• Weakness: CWE-200

Description

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/time_entries and GET /api/v3/cost_entries rendered _links.workPackage.title and _links.workPackage.href through associated_resource in modules/costs/lib/api/v3/time_entries/time_entry_representer.rb and modules/costs/lib/api/v3/cost_entries/cost_entry_representer.rb without checking WorkPackage.visible or view_work_packages, allowing users with view_time_entries or view_cost_entries to read private work package subjects and ids. This issue is fixed in 17.6.0.

Affected products

• opf openproject: before 17.6.0

References

• https://github.com/opf/openproject/commit/9e9e562e516a647f35267df715d875f58b267c18
• https://github.com/opf/openproject/commit/c31c2f958c8e72a0d0d748d728221d57f3ef9001
• https://github.com/opf/openproject/pull/23888
• https://github.com/opf/openproject/pull/23936
• https://github.com/opf/openproject/releases/tag/v17.6.0
• https://github.com/opf/openproject/security/advisories/GHSA-v3j7-vqwv-5w5q

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