CVE-2026-33948

A flaw was found in jq, a command-line JSON processor. This vulnerability allows a remote attacker to bypass input validation by crafting malicious JSON input containing embedded null (NUL) bytes. Due to incorrect handling of input buffer lengths, jq truncates the input at the first NUL byte, validating only the benign prefix and silently discarding any malicious data that follows. This can lead to parser differential attacks where downstream systems, relying on jq for validation, may process the full, unvalidated input, potentially leading to unexpected behavior or security compromises.