CVE-2025-7974 in Rocket.Chat
Summary
by MITRE • 09/02/2025
rocket.chat Incorrect Authorization Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of rocket.chat. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the web service, which listens on TCP port 3000 by default. The issue results from incorrect authorization. An attacker can leverage this vulnerability to disclose information in the context of the application. Was ZDI-CAN-26517.
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Analysis
by VulDB Data Team • 01/27/2026
The CVE-2025-7974 vulnerability represents a critical authorization flaw in rocket.chat installations that exposes sensitive information disclosure capabilities to remote attackers without requiring authentication. This vulnerability specifically targets the web service component that operates on the default TCP port 3000, making it particularly dangerous as it eliminates the need for initial access credentials. The flaw stems from improper authorization checks within the application's security model, creating a pathway for attackers to bypass normal access controls and obtain confidential data that should remain restricted to authorized users only. The vulnerability's classification under the ZDI-CAN-26517 tracking number indicates it was identified through coordinated vulnerability disclosure channels, highlighting the severity and widespread nature of the issue. The attack vector is particularly concerning because it allows exploitation from any network location without the need for prior authentication, making it accessible to both skilled and less experienced threat actors.
The technical implementation of this vulnerability lies in the application's authorization handling mechanisms where insufficient validation occurs during information access requests. When users or systems attempt to access protected resources through the web service interface, the application fails to properly verify the requester's authorization level before returning sensitive data. This misconfiguration creates a scenario where any remote entity can request information that would normally be restricted based on user roles, permissions, or session contexts. The flaw essentially allows attackers to perform unauthorized data enumeration and information gathering activities that could reveal user credentials, system configurations, internal network details, or other sensitive operational data. The vulnerability's impact extends beyond simple data exposure as it can enable further attack vectors including privilege escalation, lateral movement, or the identification of additional system weaknesses.
The operational impact of CVE-2025-7974 is substantial for organizations utilizing rocket.chat installations, as it provides attackers with unrestricted access to potentially sensitive information that could be leveraged for more sophisticated attacks. Organizations may experience unauthorized access to user communications, system metadata, configuration details, or other confidential data that could compromise operational security and user privacy. The vulnerability's accessibility from external networks without authentication requirements means that even organizations with firewalled systems could be at risk if the application is exposed to the internet. This type of information disclosure vulnerability aligns with CWE-284 which describes improper access control scenarios, and can be mapped to ATT&CK technique T1083 for discovering file and directory permissions, as well as T1566 for social engineering attacks that could leverage the disclosed information. The exposure of internal system details could enable attackers to craft more targeted attacks against specific user accounts or system components.
Organizations should implement immediate mitigations including network segmentation to restrict access to the rocket.chat web service, deployment of web application firewalls to monitor and filter suspicious requests, and thorough review of access controls and authorization mechanisms. The vulnerability should be addressed through official patches provided by rocket.chat or through temporary workarounds such as disabling unnecessary API endpoints or implementing additional authentication layers. System administrators should conduct comprehensive audits of their rocket.chat installations to identify all potential access points and verify that proper authorization checks are in place. The remediation process should include monitoring for unauthorized access attempts, reviewing application logs for evidence of exploitation attempts, and implementing network-level controls to prevent external access to the vulnerable service. Regular security assessments and vulnerability scanning should be conducted to ensure that similar authorization flaws do not exist in other components of the application stack, as this vulnerability demonstrates a fundamental weakness in the application's security architecture that could potentially affect related systems or services.