CVE-2025-60540 identifies a Server-Side Request Forgery (SSRF) vulnerability in karakeep versions 0.26.0 through 0.7.0. SSRF vulnerabilities occur when an attacker can manipulate a server to send crafted HTTP requests to unintended destinations, often internal or protected network resources. In this case, the vulnerability allows remote attackers to trigger such requests without requiring authentication or user interaction, increasing the attack surface. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L) indicates network attack vector, low attack complexity, no privileges or user interaction needed, unchanged scope, limited confidentiality impact, no integrity impact, and low availability impact. The flaw could be exploited to access internal services, potentially leaking sensitive information or causing partial denial of service by overwhelming internal resources. No patches or known exploits are currently available, which suggests either recent discovery or limited exploitation. The vulnerability is tracked under CWE-918, which covers SSRF issues. Organizations using affected karakeep versions should assess exposure and implement compensating controls while awaiting official fixes.

For European organizations, the SSRF vulnerability in karakeep could lead to unauthorized access to internal network resources, exposing sensitive data or internal services not intended for external access. This can compromise confidentiality and potentially disrupt availability if internal systems are overwhelmed or manipulated. Industries relying on karakeep for critical operations, such as finance, healthcare, or government services, face increased risk of data leakage or service disruption. The lack of authentication requirement means attackers can exploit this vulnerability remotely without credentials, increasing the likelihood of attacks. Although the impact on integrity is minimal, the confidentiality and availability risks can have significant operational and reputational consequences. Organizations with poorly segmented networks or insufficient egress filtering are particularly vulnerable. The absence of known exploits provides a window for proactive defense, but also means attackers may develop exploits soon after disclosure.

1. Immediately restrict outbound HTTP/HTTPS requests from servers running karakeep to only trusted destinations using firewall rules or network ACLs. 2. Implement strict input validation and sanitization on any user-controllable parameters that influence server requests to prevent injection of malicious URLs. 3. Employ network segmentation to isolate critical internal services from servers exposed to external inputs. 4. Monitor logs for unusual outbound request patterns indicative of SSRF exploitation attempts. 5. Use web application firewalls (WAFs) with SSRF detection capabilities to block suspicious requests. 6. Stay updated with karakeep vendor announcements and apply patches promptly once available. 7. Conduct internal security assessments and penetration tests focusing on SSRF vectors within karakeep deployments. 8. Educate development and operations teams about SSRF risks and secure coding practices to prevent similar vulnerabilities in future versions.