CVE-2026-55865 Python Liquid: Infinite loop when parsing malformed `{% case %}` tags

Python Liquid is a Python engine for the Liquid template language. Prior to 2.2.1, given a malformed % case % tag without an associated % when % or % else % block and no terminating % endcase % tag, Python Liquid hangs in an infinite loop at parse time because liquid.TokenStream.eof did not give...

PT-2026-51120

Name of the Vulnerable Software and Affected Versions Python Liquid versions prior to 2.2.1 Description A denial of service issue exists where the engine hangs in an infinite loop during parse time. This occurs when a malformed % case % tag is used without an associated % when % or % else % block...