Insecure Data Exposure in OpenProject by OPF
CVE-2026-55095

5.3MEDIUM

Key Information:

Vendor

Opf

Status
Openproject
Vendor
CVE Published:
20 August 2026

What is CVE-2026-55095?

OpenProject, an open-source project management software, has a vulnerability that allows authenticated non-admin project members to access in-place edit dialogs for custom project attributes. This occurs in versions 17.5.1 and earlier, where the dialog reveals hidden comments linked to custom fields due to a lack of proper visibility enforcement. Although the actual custom field values remain secure, this exposure could lead to unauthorized access to sensitive information. The issue has been resolved in version 17.6.0.

Affected Version(s)

openproject < 17.6.0

References

https://github.com/opf/openproject/security/advisories/GH...
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https://github.com/opf/openproject/releases/tag/v17.6.0
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CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.