CVE-2026-1332 identifies a Missing Authentication vulnerability (CWE-306) in HAMASTAR Technology's MeetingHub product, specifically affecting version 0. The vulnerability arises because certain critical API functions do not enforce any authentication checks, allowing unauthenticated remote attackers to invoke these APIs and retrieve meeting-related information. This could include sensitive data such as meeting schedules, participant details, or other confidential information managed by MeetingHub. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N) indicates that the attack can be performed remotely over the network without any privileges, user interaction, or authentication, with low impact on confidentiality and no impact on integrity or availability. The absence of authentication on critical functions represents a serious design flaw, exposing sensitive data to unauthorized parties. No patches or fixes have been published yet, and no exploits are known in the wild, but the vulnerability's nature makes it relatively straightforward to exploit. MeetingHub is used for managing meetings and collaboration, so unauthorized access could lead to information leakage and privacy violations. The vulnerability was published on January 22, 2026, by TW-CERT, and is currently in the published state without mitigations.

For European organizations, this vulnerability poses a risk of unauthorized disclosure of sensitive meeting information, which can compromise confidentiality and privacy. Organizations relying on MeetingHub for internal or external communications may inadvertently expose strategic discussions, personal data, or proprietary information. This could lead to reputational damage, regulatory non-compliance (especially under GDPR), and potential competitive disadvantage. While the vulnerability does not affect integrity or availability, the leakage of confidential meeting data can facilitate further targeted attacks such as social engineering or corporate espionage. The ease of exploitation without authentication increases the risk of opportunistic attackers scanning for vulnerable MeetingHub instances. Sectors with high confidentiality requirements, such as government, finance, healthcare, and critical infrastructure, are particularly vulnerable. The lack of known exploits currently reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits once the vulnerability becomes widely known.

Since no official patches are currently available, European organizations should implement compensating controls immediately. These include restricting network access to MeetingHub APIs via firewalls or VPNs to trusted users only, applying strict IP whitelisting, and disabling or limiting access to vulnerable API endpoints if possible. Organizations should conduct thorough audits of MeetingHub deployments to identify exposed instances and monitor logs for unusual or unauthorized API access attempts. Implementing strong authentication and authorization mechanisms at the network or application layer can help mitigate risk until a vendor patch is released. Additionally, organizations should engage with HAMASTAR Technology to obtain timelines for patch releases and apply updates promptly once available. Employee awareness and incident response plans should be updated to address potential data leakage scenarios. Finally, consider alternative secure collaboration platforms if MeetingHub cannot be adequately secured in the interim.