CVE-2026-1415 is a vulnerability in the GPAC multimedia framework, specifically in versions 2.0 through 2.4.0. The issue resides in the function gf_media_export_webvtt_metadata within the source file src/media_tools/media_export.c. The vulnerability is triggered by improper handling of the 'Name' argument, which can be manipulated to cause a null pointer dereference. This results in the application attempting to access memory through a null pointer, leading to a crash and denial of service. The attack vector requires local access with low privileges, no authentication or user interaction is necessary beyond local execution. The exploit code is publicly available, increasing the risk of exploitation by insiders or attackers with local system access. The vulnerability does not affect confidentiality or integrity but impacts availability by causing application crashes. The patch identified by commit af951b892dfbaaa38336ba2eba6d6a42c25810fd addresses the issue by adding proper validation and handling of the 'Name' argument to prevent null pointer dereference. This vulnerability is tracked under CVE-2026-1415 with a CVSS 4.8 (medium) score, reflecting its limited attack surface and impact.

The primary impact of CVE-2026-1415 is denial of service due to application crashes caused by null pointer dereference. Organizations relying on GPAC for media processing, streaming, or multimedia content export may experience service interruptions or degraded availability if exploited. While the vulnerability does not allow remote exploitation or privilege escalation, it poses a risk in environments where local users or processes can be compromised or are untrusted. This could include multi-user systems, shared hosting environments, or automated processing pipelines where an attacker gains local access. Disruption of media services could affect user experience, business operations, and potentially lead to cascading failures in dependent systems. The availability impact is moderate given the local access requirement and absence of remote exploitation vectors.

To mitigate CVE-2026-1415, organizations should promptly apply the official patch identified by commit af951b892dfbaaa38336ba2eba6d6a42c25810fd to all affected GPAC installations. Additionally, restrict local access to systems running GPAC to trusted users only, minimizing the risk of local exploitation. Implement strict access controls and monitoring to detect unauthorized local activity. Employ application whitelisting and sandboxing techniques to limit the impact of potential crashes. Regularly audit and update multimedia processing software to the latest versions to benefit from security fixes. In environments where patching is delayed, consider disabling or restricting the use of the vulnerable function if feasible. Finally, maintain robust incident response plans to quickly address any service disruptions caused by exploitation attempts.