CVE-2025-9403

A vulnerability has been identified in the jq JSON processor where malformed JSON input containing invalid Unicode escape sequences can trigger an assertion failure in the test suite’s parsing consistency checks. This flaw arises from inconsistencies between expected and reparsed JSON values during serialization and deserialization, potentially allowing an attacker to exploit the issue by supplying specially crafted JSON data to cause abnormal termination or denial of service during test execution, highlighting weaknesses in jq’s parsing reliability.