CVE-2026-112037 in diem
Summary
by MITRE • 10/19/2026
A flaw has been found in diem-project diem up to 116974edfb9a5b8bd69cb13586dc62bcdbb485ad. Affected is an unknown function of the file dmCorePlugin/lib/vendor/gapi/gapi.class.php of the component Google Analytics Client. Executing a manipulation can lead to improper certificate validation. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is told to be difficult. The exploit has been published and may be used. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. The project was informed of the problem early through an issue report but has not responded yet.
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Analysis
by VulDB Data Team • 10/19/2026
The vulnerability identified in diem-project versions up to commit 116974edfb9a5b8bd69cb13586dc62bcdbb485ad represents a critical security deficiency within the Google Analytics Client component, specifically located in the file dmCorePlugin/lib/vendor/gapi/gapi.class.php. This flaw resides within an unknown function responsible for handling communication with external services, resulting in improper certificate validation during Transport Layer Security handshakes. The core technical issue involves the failure to strictly verify the authenticity of SSL/TLS certificates presented by remote servers. In a secure implementation, client applications must validate that the server's certificate is signed by a trusted Certificate Authority and matches the expected hostname. However, due to this flaw, the application may accept self-signed certificates or those issued by untrusted authorities without raising an alert. This behavior fundamentally undermines the integrity of encrypted communications, allowing malicious actors to intercept sensitive data through man-in-the-middle attacks where they can decrypt traffic that was presumed to be secure.
From a technical perspective, this vulnerability aligns with CWE-295, which describes Improper Certificate Validation, and is closely related to CWE-319 regarding the use of cleartext protocol without integrity checks or encryption in certain contexts if fallback occurs. The operational impact of this flaw is severe because it compromises confidentiality and integrity for any data transmitted via the Google Analytics API integration within diem-project applications. Attackers who successfully exploit this vulnerability can perform sophisticated man-in-the-middle attacks, potentially stealing user credentials, session tokens, or sensitive analytics data processed by the application. Although the attack requires a high level of complexity and is considered difficult to execute due to potential network-level mitigations or specific environmental constraints, the existence of published exploits significantly lowers the barrier for entry for determined adversaries. The fact that exploit code has been made public increases the likelihood of automated scanning tools targeting this weakness in deployed instances.
The context of diem-project operating on a rolling release basis complicates traditional patching strategies since there are no discrete version numbers to track or update against. This continuous delivery model means that any instance running an older build is potentially vulnerable until it pulls the latest code changes from the repository. The project maintainers were notified early via issue reports but have not yet responded, leaving users in a precarious position where they must manually monitor upstream repositories for fixes rather than relying on automated package manager updates. This lack of timely response exacerbates the risk exposure window significantly.
To mitigate this vulnerability, immediate action is required from system administrators and developers utilizing diem-project. The primary remediation step involves updating to a version that includes the fix for improper certificate validation in gapi.class.php once it becomes available upstream. In the interim, organizations should implement network-level controls such as strict firewall rules limiting outbound connections to only known Google Analytics endpoints and consider deploying SSL inspection proxies with proper CA trust stores if internal visibility is required. Additionally, developers can apply a temporary code patch by enforcing strict certificate verification options within the PHP cURL or stream context configurations used by the gapi library. This includes setting CURLOPT_SSL_VERIFYPEER to true and ensuring that a valid CA bundle file is specified for CURLOP_CAINFO. Regular security audits of third-party dependencies are also recommended to identify similar weaknesses in other integrated libraries before they can be exploited.