diff --git a/news/11623.bugfix.rst b/news/11623.bugfix.rst
new file mode 100644
index 00000000000..45b8fe1928f
--- /dev/null
+++ b/news/11623.bugfix.rst
@@ -0,0 +1 @@
+Fix scripts path in isolated build environment on Debian.
diff --git a/src/pip/_internal/build_env.py b/src/pip/_internal/build_env.py
index e67b868e8f4..24bfa870b07 100644
--- a/src/pip/_internal/build_env.py
+++ b/src/pip/_internal/build_env.py
@@ -8,7 +8,6 @@
 import sys
 import textwrap
 from collections import OrderedDict
-from sysconfig import get_paths
 from types import TracebackType
 from typing import TYPE_CHECKING, Iterable, List, Optional, Set, Tuple, Type
 
@@ -19,6 +18,7 @@
 from pip import __file__ as pip_location
 from pip._internal.cli.spinners import open_spinner
 from pip._internal.locations import (
+    get_isolated_environment_bin_path,
     get_isolated_environment_lib_paths,
     get_platlib,
     get_purelib,
@@ -37,10 +37,7 @@ class _Prefix:
     def __init__(self, path: str) -> None:
         self.path = path
         self.setup = False
-        self.bin_dir = get_paths(
-            "nt" if os.name == "nt" else "posix_prefix",
-            vars={"base": path, "platbase": path},
-        )["scripts"]
+        self.bin_dir = get_isolated_environment_bin_path(path)
         self.lib_dirs = get_isolated_environment_lib_paths(path)
 
 
diff --git a/src/pip/_internal/locations/__init__.py b/src/pip/_internal/locations/__init__.py
index 516bd607839..496844be142 100644
--- a/src/pip/_internal/locations/__init__.py
+++ b/src/pip/_internal/locations/__init__.py
@@ -25,9 +25,10 @@
     "USER_CACHE_DIR",
     "get_bin_prefix",
     "get_bin_user",
+    "get_isolated_environment_bin_path",
+    "get_isolated_environment_lib_paths",
     "get_major_minor_version",
     "get_platlib",
-    "get_isolated_environment_lib_paths",
     "get_purelib",
     "get_scheme",
     "get_src_prefix",
@@ -526,3 +527,7 @@ def get_isolated_environment_lib_paths(prefix: str) -> List[str]:
         _log_context(prefix=prefix)
 
     return old_lib_paths
+
+
+def get_isolated_environment_bin_path(prefix: str) -> str:
+    return _sysconfig.get_isolated_environment_paths(prefix)["scripts"]
diff --git a/src/pip/_internal/locations/_sysconfig.py b/src/pip/_internal/locations/_sysconfig.py
index 69821572081..38e400f94d4 100644
--- a/src/pip/_internal/locations/_sysconfig.py
+++ b/src/pip/_internal/locations/_sysconfig.py
@@ -213,10 +213,13 @@ def get_platlib() -> str:
     return sysconfig.get_paths()["platlib"]
 
 
-def get_isolated_environment_lib_paths(prefix: str) -> typing.Tuple[str, str]:
-    vars = {"base": prefix, "platbase": prefix}
+def get_isolated_environment_paths(prefix: str) -> typing.Dict[str, str]:
+    variables = {"base": prefix, "platbase": prefix}
     if "venv" in sysconfig.get_scheme_names():
-        paths = sysconfig.get_paths(vars=vars, scheme="venv")
-    else:
-        paths = sysconfig.get_paths(vars=vars)
+        return sysconfig.get_paths(vars=variables, scheme="venv")
+    return sysconfig.get_paths(vars=variables)
+
+
+def get_isolated_environment_lib_paths(prefix: str) -> typing.Tuple[str, str]:
+    paths = get_isolated_environment_paths(prefix)
     return (paths["purelib"], paths["platlib"])