diff --git a/git_vuln_finder/__init__.py b/git_vuln_finder/__init__.py
new file mode 100644
index 0000000..646d685
--- /dev/null
+++ b/git_vuln_finder/__init__.py
@@ -0,0 +1,6 @@
+
+from git_vuln_finder.finder import build_pattern
+from git_vuln_finder.finder import get_patterns
+from git_vuln_finder.finder import find_vuln
+from git_vuln_finder.finder import summary
+from git_vuln_finder.finder import extract_cve
diff --git a/git_vuln_finder/__pycache__/__init__.cpython-38.pyc b/git_vuln_finder/__pycache__/__init__.cpython-38.pyc
new file mode 100644
index 0000000..e53df7e
Binary files /dev/null and b/git_vuln_finder/__pycache__/__init__.cpython-38.pyc differ
diff --git a/git_vuln_finder/__pycache__/finder.cpython-38.pyc b/git_vuln_finder/__pycache__/finder.cpython-38.pyc
new file mode 100644
index 0000000..7837370
Binary files /dev/null and b/git_vuln_finder/__pycache__/finder.cpython-38.pyc differ
diff --git a/git_vuln_finder/finder.py b/git_vuln_finder/finder.py
new file mode 100644
index 0000000..184adc2
--- /dev/null
+++ b/git_vuln_finder/finder.py
@@ -0,0 +1,164 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# Finding potential software vulnerabilities from git commit messages
+#
+# Software is free software released under the "GNU Affero General Public License v3.0"
+#
+# This software is part of cve-search.org
+#
+# Copyright (c) 2019 Alexandre Dulaunoy - a@foo.be
+
+
+import os
+import re
+import git
+import json
+import sys
+import typing
+from langdetect import detect as langdetect
+
+
+PATTERNS_PATH="./git_vuln_finder/patterns"
+
+
+def build_pattern(pattern_file):
+    fp = open(pattern_file, "r")
+    rex = ""
+    try:
+        prefix_fp = open(pattern_file + ".prefix", "r")
+        rex += prefix_fp.read()
+        prefix_fp.close()
+    except:
+        pass
+
+    for line in fp.readlines():
+        rex += line.rstrip() + "|"
+    rex = rex[:-1] # We remove the extra '|
+    fp.close()
+
+    try:
+        suffix_fp = open(pattern_file + ".suffix", "r")
+        rex += suffix_fp.read()
+        suffix_fp.close()
+    except:
+        pass
+
+    return rex
+
+
+def get_patterns(patterns_path=PATTERNS_PATH):
+    patterns = {}
+    for root, dirs, files in os.walk(patterns_path):
+        path = root.split(os.sep)
+        for f in files:
+            if f.endswith(".prefix") or f.endswith(".suffix"):
+                continue
+            npath = root[len(patterns_path):].split(os.sep)
+            try:
+                npath.remove('')
+            except ValueError:
+                pass
+
+            lang = npath[0]
+            severity = npath[1]
+            pattern_category = f
+
+            try: # FIXME: Is there a better way?
+                a = patterns[lang]
+            except KeyError:
+                patterns[lang] = {}
+            try:
+                a = patterns[lang][severity]
+            except KeyError:
+                patterns[lang][severity] = {}
+            try:
+                a = patterns[lang][severity][pattern_category]
+            except KeyError:
+                rex = build_pattern(root + os.sep + f)
+                patterns[lang][severity][pattern_category] = re.compile(rex)
+
+    return patterns
+
+
+def find_vuln(commit, pattern, versbose=False):
+    m = pattern.search(commit.message)
+    if m:
+        if versbose:
+            print("Match found: {}".format(m.group(0)), file=sys.stderr)
+            print(commit.message, file=sys.stderr)
+            print("---", file=sys.stderr)
+        ret = {}
+        ret['commit'] = commit
+        ret['match'] = m.groups()
+        return ret
+    else:
+        return None
+
+
+def summary(commit,
+            branch,
+            pattern,
+            origin=None,
+            vuln_match=None,
+            tags_matching=False,
+            commit_state="under-review"
+):
+    potential_vulnerabilities = {}
+    rcommit = commit
+    cve = extract_cve(rcommit.message)
+    if origin is not None:
+        origin = origin
+        if origin.find('github.com'):
+            origin_github_api = origin.split(':')[1]
+            (org_name, repo_name) = origin_github_api.split('/', 1)
+            if repo_name.find('.git$'):
+                repo_name = re.sub(r".git$","", repo_name)
+            origin_github_api = 'https://api.github.com/repos/{}/{}/commits/{}'.format(org_name, repo_name, rcommit.hexsha)
+
+    else:
+        origin = 'git origin unknown'
+    # deduplication if similar commits on different branches
+    if rcommit.hexsha in potential_vulnerabilities:
+       potential_vulnerabilities[rcommit.hexsha]['branches'].append(branch)
+    else:
+        potential_vulnerabilities[rcommit.hexsha] = {}
+        potential_vulnerabilities[rcommit.hexsha]['message'] = rcommit.message
+        potential_vulnerabilities[rcommit.hexsha]['language'] = langdetect(rcommit.message)
+        potential_vulnerabilities[rcommit.hexsha]['commit-id'] = rcommit.hexsha
+        potential_vulnerabilities[rcommit.hexsha]['summary'] = rcommit.summary
+        potential_vulnerabilities[rcommit.hexsha]['stats'] = rcommit.stats.total
+        potential_vulnerabilities[rcommit.hexsha]['author'] = rcommit.author.name
+        potential_vulnerabilities[rcommit.hexsha]['author-email'] = rcommit.author.email
+        potential_vulnerabilities[rcommit.hexsha]['authored_date'] = rcommit.authored_date
+        potential_vulnerabilities[rcommit.hexsha]['committed_date'] = rcommit.committed_date
+        potential_vulnerabilities[rcommit.hexsha]['branches'] = []
+        potential_vulnerabilities[rcommit.hexsha]['branches'].append(branch)
+        potential_vulnerabilities[rcommit.hexsha]['pattern-selected'] = pattern.pattern
+        potential_vulnerabilities[rcommit.hexsha]['pattern-matches'] = vuln_match
+        potential_vulnerabilities[rcommit.hexsha]['origin'] = origin
+        if origin_github_api:
+            potential_vulnerabilities[commit.hexsha]['origin-github-api'] = origin_github_api
+        potential_vulnerabilities[rcommit.hexsha]['tags'] = []
+        if tags_matching:
+            if repo.commit(rcommit).hexsha in tagmap:
+                potential_vulnerabilities[rcommit.hexsha]['tags'] = tagmap[repo.commit(rcommit).hexsha]
+        if cve: potential_vulnerabilities[rcommit.hexsha]['cve'] = cve
+        if cve:
+            potential_vulnerabilities[rcommit.hexsha]['state'] = "cve-assigned"
+        else:
+            potential_vulnerabilities[rcommit.hexsha]['state'] = commit_state
+
+    return rcommit.hexsha, potential_vulnerabilities
+
+
+def extract_cve(commit):
+    cve_found = set()
+    cve_find = re.compile(r'CVE-[1-2]\d{1,4}-\d{1,7}', re.IGNORECASE)
+    m = cve_find.findall(commit)
+    if m:
+        for v in m:
+            cve_found.add(v)
+        return m
+    else:
+        return None
diff --git a/git_vuln_finder/patterns/en/medium/c b/git_vuln_finder/patterns/en/medium/c
new file mode 100644
index 0000000..42d4a36
--- /dev/null
+++ b/git_vuln_finder/patterns/en/medium/c
@@ -0,0 +1,4 @@
+double[-| ]free
+buffer overflow
+double free
+race[-| ]condition
diff --git a/git_vuln_finder/patterns/en/medium/c.prefix b/git_vuln_finder/patterns/en/medium/c.prefix
new file mode 100644
index 0000000..4a45df8
--- /dev/null
+++ b/git_vuln_finder/patterns/en/medium/c.prefix
@@ -0,0 +1 @@
+(?i)(
\ No newline at end of file
diff --git a/git_vuln_finder/patterns/en/medium/c.suffix b/git_vuln_finder/patterns/en/medium/c.suffix
new file mode 100644
index 0000000..e8a0f87
--- /dev/null
+++ b/git_vuln_finder/patterns/en/medium/c.suffix
@@ -0,0 +1 @@
+)
\ No newline at end of file
diff --git a/git_vuln_finder/patterns/en/medium/crypto b/git_vuln_finder/patterns/en/medium/crypto
new file mode 100644
index 0000000..b24e6c2
--- /dev/null
+++ b/git_vuln_finder/patterns/en/medium/crypto
@@ -0,0 +1,55 @@
+assessment
+lack of
+bad
+vulnerable
+missing
+unproper
+unsuitable
+breakable
+broken
+weak
+incorrect
+replace
+assessment
+pen([\s-]?)test
+pentest
+penetration([\s-]?)test
+report
+vulnerablity
+replace
+fix
+issue
+fixes
+add
+remove
+check){s1,}
+ (crypto
+cryptographic
+cryptography
+encipherement
+encryption
+ciphers
+cipher
+AES
+DES
+3DES
+cipher
+GPG
+PGP
+OpenSSL
+SSH
+wireguard
+VPN
+CBC
+ECB
+CTR
+key[.|,|\s]
+private([\s-]?)key
+public([\s-]?)key size
+length
+strenght
+generation
+randomness
+entropy
+prng
+rng
diff --git a/git_vuln_finder/patterns/en/medium/crypto.prefix b/git_vuln_finder/patterns/en/medium/crypto.prefix
new file mode 100644
index 0000000..f5b5f62
--- /dev/null
+++ b/git_vuln_finder/patterns/en/medium/crypto.prefix
@@ -0,0 +1 @@
+.*(
\ No newline at end of file
diff --git a/git_vuln_finder/patterns/en/medium/crypto.suffix b/git_vuln_finder/patterns/en/medium/crypto.suffix
new file mode 100644
index 0000000..12953cd
--- /dev/null
+++ b/git_vuln_finder/patterns/en/medium/crypto.suffix
@@ -0,0 +1 @@
+){1,}
\ No newline at end of file
diff --git a/git_vuln_finder/patterns/en/medium/vuln b/git_vuln_finder/patterns/en/medium/vuln
new file mode 100644
index 0000000..db3ca53
--- /dev/null
+++ b/git_vuln_finder/patterns/en/medium/vuln
@@ -0,0 +1,30 @@
+denial of service 
+\bXXE\b
+remote code execution
+\bopen redirect
+OSVDB
+\bvuln
+\bCVE\b
+\bXSS\b
+\bReDoS\b
+\bNVD\b
+malicious
+x−frame−options
+attack
+cross site 
+exploit
+malicious
+directory traversal 
+\bRCE\b
+\bdos\b
+\bXSRF \b
+\bXSS\b
+clickjack
+session.fixation
+hijack
+\badvisory
+\binsecure 
+security 
+\bcross−origin\b
+unauthori[z|s]ed 
+infinite loop
\ No newline at end of file
diff --git a/git_vuln_finder/patterns/en/medium/vuln.prefix b/git_vuln_finder/patterns/en/medium/vuln.prefix
new file mode 100644
index 0000000..4a45df8
--- /dev/null
+++ b/git_vuln_finder/patterns/en/medium/vuln.prefix
@@ -0,0 +1 @@
+(?i)(
\ No newline at end of file
diff --git a/git_vuln_finder/patterns/en/medium/vuln.suffix b/git_vuln_finder/patterns/en/medium/vuln.suffix
new file mode 100644
index 0000000..e8a0f87
--- /dev/null
+++ b/git_vuln_finder/patterns/en/medium/vuln.suffix
@@ -0,0 +1 @@
+)
\ No newline at end of file
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..02cd4ef
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,290 @@
+[[package]]
+category = "dev"
+description = "Code coverage measurement for Python"
+name = "coverage"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
+version = "5.0.1"
+
+[package.extras]
+toml = ["toml"]
+
+[[package]]
+category = "dev"
+description = "Discover and load entry points from installed packages."
+name = "entrypoints"
+optional = false
+python-versions = ">=2.7"
+version = "0.3"
+
+[[package]]
+category = "dev"
+description = "the modular source code checker: pep8, pyflakes and co"
+name = "flake8"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "3.7.9"
+
+[package.dependencies]
+entrypoints = ">=0.3.0,<0.4.0"
+mccabe = ">=0.6.0,<0.7.0"
+pycodestyle = ">=2.5.0,<2.6.0"
+pyflakes = ">=2.1.0,<2.2.0"
+
+[[package]]
+category = "main"
+description = "Git Object Database"
+name = "gitdb2"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "2.0.6"
+
+[package.dependencies]
+smmap2 = ">=2.0.0"
+
+[[package]]
+category = "main"
+description = "Python Git Library"
+name = "gitpython"
+optional = false
+python-versions = ">=3.0, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "3.0.5"
+
+[package.dependencies]
+gitdb2 = ">=2.0.0"
+
+[[package]]
+category = "main"
+description = "Language detection library ported from Google's language-detection."
+name = "langdetect"
+optional = false
+python-versions = "*"
+version = "1.0.7"
+
+[package.dependencies]
+six = "*"
+
+[[package]]
+category = "dev"
+description = "McCabe checker, plugin for flake8"
+name = "mccabe"
+optional = false
+python-versions = "*"
+version = "0.6.1"
+
+[[package]]
+category = "dev"
+description = "Optional static typing for Python"
+name = "mypy"
+optional = false
+python-versions = ">=3.5"
+version = "0.750"
+
+[package.dependencies]
+mypy-extensions = ">=0.4.0,<0.5.0"
+typed-ast = ">=1.4.0,<1.5.0"
+typing-extensions = ">=3.7.4"
+
+[package.extras]
+dmypy = ["psutil (>=4.0)"]
+
+[[package]]
+category = "dev"
+description = "Experimental type system extensions for programs checked with the mypy typechecker."
+name = "mypy-extensions"
+optional = false
+python-versions = "*"
+version = "0.4.3"
+
+[[package]]
+category = "dev"
+description = "unittest2 with plugins, the succesor to nose"
+name = "nose2"
+optional = false
+python-versions = "*"
+version = "0.9.1"
+
+[package.dependencies]
+coverage = ">=4.4.1"
+six = ">=1.7"
+
+[package.extras]
+coverage_plugin = ["coverage (>=4.4.1)"]
+doc = ["Sphinx (>=1.6.5)", "sphinx-rtd-theme", "mock"]
+
+[[package]]
+category = "dev"
+description = "Python style guide checker"
+name = "pycodestyle"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "2.5.0"
+
+[[package]]
+category = "dev"
+description = "passive checker of Python programs"
+name = "pyflakes"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "2.1.1"
+
+[[package]]
+category = "main"
+description = "Python 2 and 3 compatibility utilities"
+name = "six"
+optional = false
+python-versions = ">=2.6, !=3.0.*, !=3.1.*"
+version = "1.13.0"
+
+[[package]]
+category = "main"
+description = "A pure Python implementation of a sliding window memory map manager"
+name = "smmap2"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "2.0.5"
+
+[[package]]
+category = "dev"
+description = "a fork of Python 2 and 3 ast modules with type comment support"
+name = "typed-ast"
+optional = false
+python-versions = "*"
+version = "1.4.0"
+
+[[package]]
+category = "dev"
+description = "Backported and Experimental Type Hints for Python 3.5+"
+name = "typing-extensions"
+optional = false
+python-versions = "*"
+version = "3.7.4.1"
+
+[metadata]
+content-hash = "4fd05852a9f3844298b1c0dbc4ab61ddbb77f4a42602c42982e19e531a7883d6"
+python-versions = "^3.6"
+
+[metadata.files]
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diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..d68b00e
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,59 @@
+[tool.poetry]
+name = "git-vuln-finder"
+version = "1.0.0"
+description = "Finding potential software vulnerabilities from git commit messages."
+authors = [
+    "Alexandre Dulaunoy <a@foo.be>"
+]
+license = "GPL-3.0-or-later"
+
+readme = "README.md"
+
+homepage = "https://github.com/cve-search/git-vuln-finder"
+repository = "https://github.com/cve-search/git-vuln-finder"
+documentation = ""
+
+keywords = [
+    "git",
+    "cve",
+    "scanner",
+    "cve-search",
+    "cve-scanning",
+    "software-vulnerability",
+    "software-vulnerabilities"
+]
+
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Environment :: Console",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Science/Research",
+    "Topic :: Security",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)"
+]
+
+include = [
+    "AUTHORS",
+    "COPYING",
+    "bin/*"
+]
+
+[tool.poetry.scripts]
+finder = "bin.finder:main"
+
+[tool.poetry.dependencies]
+python = "^3.6"
+langdetect = "^1.0.7"
+gitpython = "^3.0.5"
+
+[tool.poetry.dev-dependencies]
+mypy = "^0.750"
+flake8 = "^3.7.9"
+nose2 = "^0.9.1"
+
+[build-system]
+requires = ["poetry>=0.12"]
+build-backend = "poetry.masonry.api"