diff --git a/clearml_agent/helper/docker_args.py b/clearml_agent/helper/docker_args.py
index 3a1d252..0421251 100644
--- a/clearml_agent/helper/docker_args.py
+++ b/clearml_agent/helper/docker_args.py
@@ -17,6 +17,30 @@ if TYPE_CHECKING:
     from clearml_agent.session import Session
 
 
+def sanitize_urls(s: str) -> Tuple[str, bool]:
+    """
+    Replaces passwords in URLs with asterisks.
+    Returns the sanitized string and a boolean indicating whether sanitation was performed.
+    """
+    regex = re.compile("^([^:]*:)[^@]+(.*)$")
+    tokens = re.split(r"\s", s)
+    changed = False
+    for k in range(len(tokens)):
+        if "@" in tokens[k]:
+            res = urlparse(tokens[k])
+            if regex.match(res.netloc):
+                changed = True
+                tokens[k] = urlunparse((
+                    res.scheme,
+                    regex.sub("\\1********\\2", res.netloc),
+                    res.path,
+                    res.params,
+                    res.query,
+                    res.fragment
+                ))
+    return " ".join(tokens) if changed else s, changed
+
+
 class DockerArgsSanitizer:
     @classmethod
     def sanitize_docker_command(cls, session, docker_command):
@@ -62,11 +86,11 @@ class DockerArgsSanitizer:
                     elif key in keys:
                         val = "********"
                     elif parse_embedded_urls:
-                        val = cls._sanitize_urls(val)[0]
+                        val = sanitize_urls(val)[0]
                     result[i + 1] = "{}={}".format(key, val)
                     skip_next = True
                 elif parse_embedded_urls and not item.startswith("-"):
-                    item, changed = cls._sanitize_urls(item)
+                    item, changed = sanitize_urls(item)
                     if changed:
                         result[i] = item
             except (KeyError, TypeError):
@@ -74,27 +98,6 @@ class DockerArgsSanitizer:
 
         return result
 
-    @staticmethod
-    def _sanitize_urls(s: str) -> Tuple[str, bool]:
-        """ Replaces passwords in URLs with asterisks """
-        regex = re.compile("^([^:]*:)[^@]+(.*)$")
-        tokens = re.split(r"\s", s)
-        changed = False
-        for k in range(len(tokens)):
-            if "@" in tokens[k]:
-                res = urlparse(tokens[k])
-                if regex.match(res.netloc):
-                    changed = True
-                    tokens[k] = urlunparse((
-                        res.scheme,
-                        regex.sub("\\1********\\2", res.netloc),
-                        res.path,
-                        res.params,
-                        res.query,
-                        res.fragment
-                    ))
-        return " ".join(tokens) if changed else s, changed
-
     @staticmethod
     def get_list_of_switches(docker_args: List[str]) -> List[str]:
         args = []
diff --git a/clearml_agent/session.py b/clearml_agent/session.py
index ee0226c..462d087 100644
--- a/clearml_agent/session.py
+++ b/clearml_agent/session.py
@@ -19,7 +19,7 @@ from clearml_agent.definitions import ENVIRONMENT_CONFIG, ENV_TASK_EXECUTE_AS_US
 from clearml_agent.errors import APIError
 from clearml_agent.helper.base import HOCONEncoder
 from clearml_agent.helper.process import Argv
-from clearml_agent.helper.docker_args import DockerArgsSanitizer
+from clearml_agent.helper.docker_args import DockerArgsSanitizer, sanitize_urls
 from .version import __version__
 
 POETRY = "poetry"
@@ -245,33 +245,43 @@ class Session(_Session):
             remove_secret_keys=("secret", "pass", "token", "account_key", "contents"),
             skip_value_keys=("environment", ),
             docker_args_sanitize_keys=("extra_docker_arguments", ),
+            sanitize_urls_keys=("extra_index_url", ),
     ):
         # remove all the secrets from the print
-        def recursive_remove_secrets(dictionary, secret_keys=(), empty_keys=()):
+        def recursive_remove_secrets(dictionary):
             for k in list(dictionary):
-                for s in secret_keys:
+                for s in remove_secret_keys:
                     if s in k:
                         dictionary.pop(k)
                         break
-                for s in empty_keys:
+                for s in skip_value_keys:
                     if s == k:
                         dictionary[k] = {key: '****' for key in dictionary[k]} \
                             if isinstance(dictionary[k], dict) else '****'
                         break
+                for s in sanitize_urls_keys:
+                    if s == k:
+                        value = dictionary.get(k, None)
+                        if isinstance(value, str):
+                            dictionary[k] = sanitize_urls(value)[0]
+                        elif isinstance(value, (list, tuple)):
+                            dictionary[k] = [sanitize_urls(v)[0] for v in value]
+                        elif isinstance(value, dict):
+                            dictionary[k] = {k_: sanitize_urls(v)[0] for k_, v in value.items()}
                 if isinstance(dictionary.get(k, None), dict):
-                    recursive_remove_secrets(dictionary[k], secret_keys=secret_keys, empty_keys=empty_keys)
+                    recursive_remove_secrets(dictionary[k])
                 elif isinstance(dictionary.get(k, None), (list, tuple)):
                     if k in (docker_args_sanitize_keys or []):
                         dictionary[k] = DockerArgsSanitizer.sanitize_docker_command(self, dictionary[k])
                     for item in dictionary[k]:
                         if isinstance(item, dict):
-                            recursive_remove_secrets(item, secret_keys=secret_keys, empty_keys=empty_keys)
+                            recursive_remove_secrets(item)
 
         config = deepcopy(self.config.to_dict())
         # remove the env variable, it's not important
         config.pop('env', None)
-        if remove_secret_keys or skip_value_keys or docker_args_sanitize_keys:
-            recursive_remove_secrets(config, secret_keys=remove_secret_keys, empty_keys=skip_value_keys)
+        if remove_secret_keys or skip_value_keys or docker_args_sanitize_keys or sanitize_urls_keys:
+            recursive_remove_secrets(config)
         # remove logging.loggers.urllib3.level from the print
         try:
             config['logging']['loggers']['urllib3'].pop('level', None)