CVE-2026-103108 in Infinity
Summary
by MITRE • 09/30/2026
Pexip Infinity before 38.2, plus 39.0, 39.1, and 40.0, is affected by improper input validation in the media implementation that allows a remote attacker to trigger a software abort resulting in a denial of service
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Analysis
by VulDB Data Team • 09/30/2026
The vulnerability identified affects Pexip Infinity versions prior to 38.2 as well as specific releases within the 39 and 40 series, specifically versions 39.0, 39.1, and 40.0. This security flaw resides within the media implementation layer of the software architecture, which is responsible for handling real-time audio and video data streams essential for conferencing operations. The core technical issue stems from improper input validation mechanisms that fail to adequately sanitize or verify incoming media packets before processing them. When a remote attacker constructs maliciously crafted media payloads containing malformed headers, unexpected control codes, or invalid parameter values, the application fails to handle these anomalies gracefully. Instead of rejecting the invalid data with an appropriate error code, the software encounters an unrecoverable state that triggers a software abort condition. This abrupt termination causes the affected service process to crash immediately upon processing the malicious input.
From an operational perspective, this vulnerability poses a significant risk to availability and business continuity for organizations relying on Pexip Infinity for communication infrastructure. Because the flaw allows a remote attacker to trigger a denial of service without requiring authentication in many configurations, it can be exploited by any network-accessible adversary who can reach the media endpoints or gateways. The immediate consequence is the disruption of active conference sessions and the inability to establish new connections until the affected services are manually restarted. In enterprise environments where video conferencing is critical for daily operations, such instability leads to productivity losses and potential reputational damage if service reliability cannot be guaranteed. Furthermore, repeated exploitation attempts may lead to resource exhaustion or cascading failures in clustered deployments if load balancers do not properly detect and isolate the failing nodes.
This vulnerability aligns with Common Weakness Enumeration identifier CWE-20, which describes Improper Input Validation, as the root cause is the failure to verify that user-supplied input meets expected criteria before processing. Additionally, from a tactical standpoint within the MITRE ATT&CK framework, this flaw facilitates Denial of Service attacks categorized under T1499, specifically Endpoint Denial of Service or Network Denial of Service depending on the scope of impact. The attack vector is classified as Remote (Network) with Low Complexity and No Privileges Required, making it a high-priority target for automated scanning tools and opportunistic attackers seeking to disrupt services without needing valid credentials.
To mitigate this risk, organizations must prioritize patching all affected instances of Pexip Infinity to version 38.2 or later, ensuring that the specific vulnerable versions in the 39 and 40 series are updated to their respective patched releases where input validation logic has been hardened. In addition to applying vendor-provided patches, administrators should implement network-level controls such as access control lists to restrict media traffic sources to known and trusted IP ranges, thereby reducing the attack surface available to remote adversaries. Deploying intrusion prevention systems capable of detecting anomalous media packet patterns can also provide an additional layer of defense by blocking malformed payloads before they reach the vulnerable application logic. Regular security assessments and penetration testing focused on media stream handling should be conducted to verify that input validation controls are functioning as intended across all deployed components.