From efb3328ad8067dac6738a0209b1e8518ba890ed5 Mon Sep 17 00:00:00 2001
From: jaimergp <jaimergp@users.noreply.github.com>
Date: Sun, 30 Mar 2025 20:41:11 +0200
Subject: [PATCH] Validate vers qualifier

---
 setup.cfg                  | 1 +
 src/packageurl/__init__.py | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/setup.cfg b/setup.cfg
index 668d254..a6f0ebc 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -41,6 +41,7 @@ package_dir = =src
 include_package_data = true
 zip_safe = false
 install_requires =
+    univers>=30.12.1
 
 [options.packages.find]
 where = src
diff --git a/src/packageurl/__init__.py b/src/packageurl/__init__.py
index 8199e39..b88aac9 100644
--- a/src/packageurl/__init__.py
+++ b/src/packageurl/__init__.py
@@ -43,6 +43,8 @@
 
     AnyStr = Union[str, bytes]
 
+from univers.version_range import VersionRange
+
 # Python 3
 basestring = (bytes, str)
 
@@ -221,6 +223,9 @@ def normalize_qualifiers(
         if key[0] in string.digits:
             raise ValueError(f"A qualifier key cannot start with a number: {key!r}")
 
+    if vers := qualifiers_map.get("vers"):
+        VersionRange.from_string(vers, validate=True)
+
     qualifiers_map = dict(sorted(qualifiers_map.items()))
 
     if not encode: