CVE-2026-8484

A flaw was found in Jansi. A heap buffer overflow vulnerability exists in the Jansi Java Native Interface (JNI) 'ioctl()' wrapper. This is due to a lack of size verification for the argument array before the system call, which can lead to heap corruption. An attacker could exploit this to cause application crashes, resulting in a Denial of Service (DoS).

This Moderate vulnerability in Jansi's JNI ioctl() wrapper can lead to a denial of service due to a heap buffer overflow. Exploitation requires local access and user interaction, as the flaw stems from insufficient size verification of the argument array before a system call, potentially causing application instability. The unmaintained status of the Jansi project increases the risk associated with this flaw.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.