CVE-2026-22600 is a critical Local File Read (LFR) vulnerability affecting OpenProject, an open-source, web-based project management software. This vulnerability allows attackers to exploit the PDF export functionality of work packages in OpenProject prior to version 16.6.4. By uploading a specially crafted SVG file disguised as a PNG, an attacker can leverage the backend image processing engine, ImageMagick, to read arbitrary local files that the application user has permissions to access, including sensitive files such as /etc/passwd and project configuration files.
With a CVSS score of 9.1, the severity of this vulnerability is classified as critical. The potential impact is significant, as it allows unauthorized access to sensitive data within the system. The attack requires an attacker to have permissions to upload attachments to a container that can be exported to PDF, such as a work package, making it a risk for organizations utilizing this functionality.
Organizations should prioritize patching immediately, as the vulnerability has been addressed in version 16.6.4 of OpenProject. For those unable to upgrade, a manual patch is available. Ensuring that systems are up to date is crucial to preventing exploitation of this vulnerability.
Currently, no public exploit has been confirmed, and the vulnerability is not listed in the Known Exploited Vulnerabilities (KEV) database. However, the nature of the vulnerability necessitates that organizations remain vigilant and take immediate action to mitigate the risks.
Risk to organizations includes unauthorized access to sensitive files, which could lead to data breaches and potential financial and reputational damage. Organizations need to understand the implications of this vulnerability and take necessary precautions.
In summary, CVE-2026-22600 presents a critical risk to users of OpenProject. Organizations should take immediate action to patch this vulnerability to safeguard sensitive information and maintain the integrity of their systems.
Vulnerability Details
The vulnerability is characterized as a Local File Read (LFR) vulnerability. The official description notes that the vulnerability allows for arbitrary local file reads via the work package PDF export functionality in OpenProject prior to version 16.6.4. The CVSS score of 9.1 categorizes this as critical, indicating a high severity level due to its potential impact on confidentiality, integrity, and availability.
The affected products include all versions of OpenProject prior to the patched version 16.6.4. The attack vector is classified as NETWORK, and the required privileges are low, which increases the risk of exploitation.
This vulnerability has been classified under CWE-200, indicating improper exposure of sensitive information. Organizations using OpenProject should be aware of this risk and take immediate steps to remediate.
Technical Analysis
The root cause of this vulnerability lies in the handling of SVG files uploaded as attachments. When a specially crafted SVG file is uploaded and exported as a PDF, the backend processing through ImageMagick triggers the text: coder, leading to the exposure of local files. The attack complexity is low, requiring only basic permissions to upload files, and there is no user interaction needed to exploit the vulnerability.
The confidentiality impact is high, as sensitive files can be accessed, while the integrity and availability impacts are low. This makes it critical for organizations to assess their exposure and implement necessary security controls.
Risk & Impact Analysis
The real-world risk associated with CVE-2026-22600 is significant. Organizations that utilize OpenProject and allow users to upload attachments are at risk for unauthorized file access, which could lead to data leakage of sensitive information. The ability to read files such as /etc/passwd or project-specific data can have severe repercussions, including compliance violations and reputational damage.
Given the critical nature of this vulnerability, organizations must address this issue in their patch management cycles. The urgency for remediation is high, and organizations should not delay in implementing the patch provided in version 16.6.4 to mitigate potential threats.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to OpenProject 16.6.4 are affected by this vulnerability. Organizations using older versions should prioritize upgrading to the latest release to address this critical issue.
Mitigation & Remediation
To mitigate this vulnerability, organizations should upgrade to OpenProject version 16.6.4 or later. For those unable to upgrade, it is recommended to apply the available patch manually. Additionally, organizations should implement configuration hardening measures and restrict file upload permissions to minimize exposure.
For more information on penetration testing and ensuring the security of your environment, organizations can refer to our penetration testing services to identify potential weaknesses and secure their applications.
Detection Guidance
Organizations should monitor logs for any unusual access patterns related to file uploads and PDF exports. Behavioral anomalies during the export process should be investigated, and network signatures should be established to detect potential exploitation attempts.
AppSecure Threat Intelligence Insight
CVE-2026-22600 highlights the ongoing risks associated with file upload functionalities in web applications. As organizations increasingly rely on open-source solutions like OpenProject, understanding and mitigating vulnerabilities is crucial. This vulnerability serves as a reminder to regularly review and update security measures to protect sensitive information.
Security teams should prioritize the evaluation of their file upload mechanisms and implement robust validation to prevent similar vulnerabilities. For further insights on security best practices, organizations can explore our article on security testing best practices and consider implementing regular assessments to identify potential risks.
Furthermore, organizations should stay informed about emerging threats and trends in the cybersecurity landscape. Engaging in proactive security measures can significantly reduce the likelihood of exploitation.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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