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Created May 17, 2012 16:55
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Merging Nessus Files
# file:
# based off:
# by: mastahyeti
import xml.etree.ElementTree as etree
import shutil
import os
first = 1
for fileName in os.listdir("."):
if ".nessus" in fileName:
print(":: Parsing", fileName)
if first:
mainTree = etree.parse(fileName)
report = mainTree.find('Report')
report.attrib['name'] = 'Merged Report'
first = 0
tree = etree.parse(fileName)
for host in tree.findall('.//ReportHost'):
existing_host = report.find(".//ReportHost[@name='"+host.attrib['name']+"']")
if not existing_host:
print "adding host: " + host.attrib['name']
for item in host.findall('ReportItem'):
if not existing_host.find("ReportItem[@port='"+ item.attrib['port'] +"'][@pluginID='"+ item.attrib['pluginID'] +"']"):
print "adding finding: " + item.attrib['port'] + ":" + item.attrib['pluginID']
print(":: => done.")
if "nss_report" in os.listdir("."):
mainTree.write("nss_report/report.nessus", encoding="utf-8", xml_declaration=True)
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Are you aware of any file size limitations? I have 200 files I'm attempting to combine that total 2GB.

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This does not work with python2.6 which is still the most installed version in production environment. Knowing no python, I'm doomed :-) I tried this, but it's growing over my head:

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This is great for smaller files, but i have 40 reports that push through to a 1Gb .nessus file. it takes a good 5Gb of RAM to run this. if anyone knows of a script that uses iterparse (or similar), it would be great to see.

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xcabax commented Sep 28, 2016

This works perfect. I merged 56 reports with more than 25,000 hosts.

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Sendarg commented Apr 1, 2017


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TerminalFi commented Jun 29, 2018



  • Clean output
  • Supports GB's of data



  • Supports GB's of files (Uses iterparse())
  • Fast

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