https://sourceforge.net/p/lirc/git/merge-requests/39/

commit 8fab503abb3fdababb1875fdc2373afe8534770e
Author: Craig Andrews <candrews@integralblue.com>
Date:   Sat May 11 11:39:44 2019 -0400

    Use pyyaml safe_load instead of load
    
    Using load on untrusted user input could lead to arbitrary code execution.
    Therefore, upstream has disabled load, requiring the use of either
    safe_load or full_load
    See https://github.com/yaml/pyyaml/issues/265

diff --git a/python-pkg/lirc/database.py b/python-pkg/lirc/database.py
index d464c2ab..bd567181 100644
--- a/python-pkg/lirc/database.py
+++ b/python-pkg/lirc/database.py
@@ -66,7 +66,7 @@ def _load_kerneldrivers(configdir):
     '''
 
     with open(os.path.join(configdir, "kernel-drivers.yaml")) as f:
-        cf = yaml.load(f.read())
+        cf = yaml.safe_load(f.read())
     drivers = cf['drivers'].copy()
     for driver in cf['drivers']:
         if driver == 'default':
@@ -132,14 +132,14 @@ class Database(object):
             yamlpath = configdir
         db = {}
         with open(os.path.join(yamlpath, "confs_by_driver.yaml")) as f:
-            cf = yaml.load(f.read())
+            cf = yaml.safe_load(f.read())
         db['lircd_by_driver'] = cf['lircd_by_driver'].copy()
         db['lircmd_by_driver'] = cf['lircmd_by_driver'].copy()
 
         db['kernel-drivers'] = _load_kerneldrivers(configdir)
         db['drivers'] = db['kernel-drivers'].copy()
         with open(os.path.join(yamlpath, "drivers.yaml")) as f:
-            cf = yaml.load(f.read())
+            cf = yaml.safe_load(f.read())
         db['drivers'].update(cf['drivers'].copy())
         for key, d in db['drivers'].items():
             d['id'] = key
@@ -158,7 +158,7 @@ class Database(object):
         configs = {}
         for path in glob.glob(configdir + '/*.conf'):
             with open(path) as f:
-                cf = yaml.load(f.read())
+                cf = yaml.safe_load(f.read())
             configs[cf['config']['id']] = cf['config']
         db['configs'] = configs
         self.db = db