CVE-2026-52780: CWE-20: Improper Input Validation in opf openproject
OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, cache store poisoning leads to Remote Code Execution (RCE). This vulnerability is fixed in 17.3.3 and 17.4.1.
AI Analysis
Technical Summary
CVE-2026-52780 is a critical vulnerability in OpenProject caused by improper input validation (CWE-20) that allows cache store poisoning. This flaw enables remote code execution on affected versions prior to 17.3.3 and 17.4.1. The vulnerability has a CVSS 3.1 base score of 9.6, reflecting its critical severity with network attack vector, low attack complexity, no privileges required, no user interaction, and complete impact on confidentiality, integrity, and availability. The issue is resolved in OpenProject versions 17.3.3 and 17.4.1.
Potential Impact
Successful exploitation of this vulnerability can lead to remote code execution, allowing an attacker to execute arbitrary code on the affected system. This compromises the confidentiality, integrity, and availability of the OpenProject instance and potentially the underlying host system.
Mitigation Recommendations
The vulnerability is fixed in OpenProject versions 17.3.3 and 17.4.1. Users should upgrade to at least these versions to remediate the issue. Patch status is confirmed by the version-based fix information. No additional vendor advisory content is provided, so check official OpenProject release notes for confirmation and further guidance.
CVE-2026-52780: CWE-20: Improper Input Validation in opf openproject
Description
OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, cache store poisoning leads to Remote Code Execution (RCE). This vulnerability is fixed in 17.3.3 and 17.4.1.
CVSS v3.1
Score 9.6critical
Affected software
pkg:github/opf/openprojectRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-52780 is a critical vulnerability in OpenProject caused by improper input validation (CWE-20) that allows cache store poisoning. This flaw enables remote code execution on affected versions prior to 17.3.3 and 17.4.1. The vulnerability has a CVSS 3.1 base score of 9.6, reflecting its critical severity with network attack vector, low attack complexity, no privileges required, no user interaction, and complete impact on confidentiality, integrity, and availability. The issue is resolved in OpenProject versions 17.3.3 and 17.4.1.
Potential Impact
Successful exploitation of this vulnerability can lead to remote code execution, allowing an attacker to execute arbitrary code on the affected system. This compromises the confidentiality, integrity, and availability of the OpenProject instance and potentially the underlying host system.
Mitigation Recommendations
The vulnerability is fixed in OpenProject versions 17.3.3 and 17.4.1. Users should upgrade to at least these versions to remediate the issue. Patch status is confirmed by the version-based fix information. No additional vendor advisory content is provided, so check official OpenProject release notes for confirmation and further guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-08T17:13:43.065Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3ed4eb72d29f1837ec3423
Added to database: 06/26/2026, 19:37:15 UTC
Last enriched: 06/26/2026, 19:52:35 UTC
Last updated: 06/26/2026, 20:42:01 UTC
Views: 9
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