CVE-2026-55095: CWE-862: Missing Authorization in opf openproject
CVE-2026-55095 is a medium severity vulnerability in OpenProject, an open-source project management software. In versions 17.5.1 and earlier, an authenticated non-admin project member can access a read-only dialog that reveals hidden comment text of a raw custom project field. This disclosure does not expose the custom field's value or allow modification. The issue is fixed in version 17.6.0.
AI Analysis
Technical Summary
OpenProject versions 17.5.1 and earlier contain a missing authorization vulnerability (CWE-862) where authenticated non-admin project members can request the inplace-edit dialog for a raw custom_field_ project attribute. The dialog resolves the custom field by its raw identifier without enforcing the admin_only visibility scope, resulting in disclosure of hidden comment text in read-only mode. No write or mutation capabilities are permitted. The vulnerability is addressed in version 17.6.0.
Potential Impact
This vulnerability allows disclosure of hidden comment text associated with project custom fields to authenticated non-admin users. It does not disclose the actual custom field values nor permit any modification or mutation of data. The impact is limited to information disclosure of comments that should be restricted to admins.
Mitigation Recommendations
Upgrade OpenProject to version 17.6.0 or later, where this authorization issue is fixed. No other mitigation is indicated or required.
CVE-2026-55095: CWE-862: Missing Authorization in opf openproject
Description
CVE-2026-55095 is a medium severity vulnerability in OpenProject, an open-source project management software. In versions 17.5.1 and earlier, an authenticated non-admin project member can access a read-only dialog that reveals hidden comment text of a raw custom project field. This disclosure does not expose the custom field's value or allow modification. The issue is fixed in version 17.6.0.
CVSS v4.0
Score 5.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenProject versions 17.5.1 and earlier contain a missing authorization vulnerability (CWE-862) where authenticated non-admin project members can request the inplace-edit dialog for a raw custom_field_ project attribute. The dialog resolves the custom field by its raw identifier without enforcing the admin_only visibility scope, resulting in disclosure of hidden comment text in read-only mode. No write or mutation capabilities are permitted. The vulnerability is addressed in version 17.6.0.
Potential Impact
This vulnerability allows disclosure of hidden comment text associated with project custom fields to authenticated non-admin users. It does not disclose the actual custom field values nor permit any modification or mutation of data. The impact is limited to information disclosure of comments that should be restricted to admins.
Mitigation Recommendations
Upgrade OpenProject to version 17.6.0 or later, where this authorization issue is fixed. No other mitigation is indicated or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T14:41:54.578Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a872d78acd9273b49dd4186
Added to database: 08/20/2026, 16:38:16 UTC
Last enriched: 08/20/2026, 16:53:03 UTC
Last updated: 08/20/2026, 20:24:52 UTC
Views: 7
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