CVE-2026-49355: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in opf openproject
OpenProject is open-source, web-based project management software. Prior to 17.4.0, `GET /api/v3/meetings/:meeting_id/agenda_items/:agenda_item_id` discloses private work package data from a linked work package that belongs to a private/inaccessible project. This vulnerability is fixed in 17.4.0.
AI Analysis
Technical Summary
CVE-2026-49355 is an information exposure vulnerability in OpenProject, an open-source web-based project management software. Specifically, before version 17.4.0, the API endpoint GET /api/v3/meetings/:meeting_id/agenda_items/:agenda_item_id improperly discloses private work package data from linked work packages belonging to private or inaccessible projects. This allows unauthorized users with limited privileges to access sensitive project data. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information) and CWE-639 (Authorization Bypass Through User-Controlled Key). The vulnerability has a CVSS v3.1 base score of 4.3 (medium severity) and does not require user interaction for exploitation. It is fixed in OpenProject version 17.4.0.
Potential Impact
The vulnerability allows unauthorized actors with limited privileges to access private work package data linked to private or inaccessible projects via a specific API endpoint. This results in confidentiality loss of sensitive project information. There is no impact on integrity or availability reported. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade OpenProject to version 17.4.0 or later, where this vulnerability is fixed. Since the vendor has released an official fix, applying this update is the recommended remediation. No alternative mitigations or temporary workarounds are indicated.
CVE-2026-49355: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in opf openproject
Description
OpenProject is open-source, web-based project management software. Prior to 17.4.0, `GET /api/v3/meetings/:meeting_id/agenda_items/:agenda_item_id` discloses private work package data from a linked work package that belongs to a private/inaccessible project. This vulnerability is fixed in 17.4.0.
CVSS v3.1
Score 4.3medium
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-49355 is an information exposure vulnerability in OpenProject, an open-source web-based project management software. Specifically, before version 17.4.0, the API endpoint GET /api/v3/meetings/:meeting_id/agenda_items/:agenda_item_id improperly discloses private work package data from linked work packages belonging to private or inaccessible projects. This allows unauthorized users with limited privileges to access sensitive project data. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information) and CWE-639 (Authorization Bypass Through User-Controlled Key). The vulnerability has a CVSS v3.1 base score of 4.3 (medium severity) and does not require user interaction for exploitation. It is fixed in OpenProject version 17.4.0.
Potential Impact
The vulnerability allows unauthorized actors with limited privileges to access private work package data linked to private or inaccessible projects via a specific API endpoint. This results in confidentiality loss of sensitive project information. There is no impact on integrity or availability reported. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade OpenProject to version 17.4.0 or later, where this vulnerability is fixed. Since the vendor has released an official fix, applying this update is the recommended remediation. No alternative mitigations or temporary workarounds are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-29T14:35:45.904Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3edc0572d29f1837f466df
Added to database: 06/26/2026, 20:07:33 UTC
Last enriched: 06/26/2026, 20:12:30 UTC
Last updated: 06/26/2026, 20:41:33 UTC
Views: 6
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