CVE-2026-112859: Deserialization of Untrusted Data in ThemeREX Group Little Birdies

The vulnerability identified as CVE-2026-112859 affects ThemeREX Group's Little Birdies product through version 1.3.16. It is a deserialization of untrusted data flaw that permits object injection attacks. This type of vulnerability can allow attackers to execute arbitrary code or manipulate application logic by injecting malicious serialized objects. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability can lead to complete compromise of the affected system, including unauthorized code execution, data disclosure, and service disruption. The critical CVSS score reflects the potential for severe damage without requiring authentication or user interaction.

No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, it is recommended to restrict network exposure of the affected application and apply any available workarounds or mitigations provided by the vendor.