CVE-2026-0649 is a Server-Side Request Forgery vulnerability identified in invoiceninja, an open-source invoicing and financial management platform widely used by small and medium enterprises. The vulnerability resides in the Migration Import component, specifically within the copy function located in /app/Jobs/Util/Import.php. An attacker can manipulate the company_logo parameter to cause the server to make arbitrary HTTP requests to internal or external systems. This SSRF flaw allows remote attackers to bypass network restrictions and potentially access internal resources that are otherwise inaccessible externally. The vulnerability requires the attacker to have high privileges on the system, indicating that some form of authentication or elevated access is necessary before exploitation. The CVSS 4.0 score is 5.1 (medium severity), reflecting the moderate impact and exploitation complexity. The vulnerability affects all invoiceninja versions from 5.12.0 through 5.12.38. Despite early notification, the vendor has not issued a patch or response, and no known exploits have been observed in the wild yet. The public disclosure of the vulnerability increases the risk of exploitation, especially in environments where invoiceninja is exposed to untrusted users or networks. SSRF vulnerabilities can be leveraged for internal network scanning, accessing metadata services, or pivoting to other internal systems, potentially leading to data leakage or further compromise.

For European organizations, the impact of CVE-2026-0649 can be significant, particularly for those relying on invoiceninja for critical financial operations. Successful exploitation could allow attackers to perform unauthorized internal network requests, potentially accessing sensitive internal services, databases, or cloud metadata endpoints. This could lead to unauthorized data disclosure, internal reconnaissance, or lateral movement within the network. The requirement for high privileges limits the attack surface to insiders or attackers who have already compromised user credentials, but the lack of vendor response and patch availability increases the risk of exploitation. Organizations in regulated sectors such as finance, healthcare, and government may face compliance risks if sensitive data is exposed. Additionally, the SSRF could be used as a stepping stone for more severe attacks, impacting availability and integrity of financial data and services. The medium severity rating suggests moderate urgency, but the potential for chained attacks elevates the importance of timely mitigation.

European organizations should implement the following specific mitigations: 1) Immediately audit and restrict access to invoiceninja instances, ensuring only trusted and authenticated users have high privilege access. 2) Implement network segmentation and firewall rules to limit the invoiceninja server’s ability to make outbound HTTP requests to internal resources or sensitive endpoints. 3) Use web application firewalls (WAFs) with custom rules to detect and block suspicious SSRF payloads targeting the company_logo parameter. 4) Monitor logs for unusual outbound requests originating from invoiceninja servers, focusing on requests triggered by import or migration jobs. 5) If possible, temporarily disable or restrict the Migration Import functionality until a patch is available. 6) Engage in vulnerability scanning and penetration testing focused on SSRF vectors within invoiceninja deployments. 7) Maintain an incident response plan to quickly isolate affected systems if exploitation is suspected. 8) Follow vendor channels for updates and apply patches immediately upon release. 9) Consider deploying runtime application self-protection (RASP) solutions to detect and block SSRF attempts in real time. 10) Educate privileged users about the risks and signs of SSRF exploitation.