Bump version to 2026.2.0

This was reported as a security issue, but we see no security impact or
exploitation path, as the security of PKCE relies on keeping the
verifier secret, not the challenge.

src/pretix/__init__.py

@@ -19,4 +19,4 @@
 # You should have received a copy of the GNU Affero General Public License along with this program.  If not, see
 # <https://www.gnu.org/licenses/>.
 #
-__version__ = "2026.2.0.dev0"
+__version__ = "2026.2.0"

src/pretix/control/views/event.py

@@ -870,11 +870,15 @@ class MailSettingsPreview(EventPermissionRequiredMixin, View):
                                 )
 
                         except ValueError:
-                            msgs[self.supported_locale[idx]] = '<div class="alert alert-danger">{}</div>'.format(
-                                PlaceholderValidator.error_message)
+                            msgs[self.supported_locale[idx]] = format_html(
+                                '<div class="alert alert-danger">{}</div>',
+                                PlaceholderValidator.error_message
+                            )
                         except KeyError as e:
-                            msgs[self.supported_locale[idx]] = '<div class="alert alert-danger">{}</div>'.format(
-                                _('Invalid placeholder: {%(value)s}') % {'value': e.args[0]})
+                            msgs[self.supported_locale[idx]] = format_html(
+                                '<div class="alert alert-danger">{}</div>',
+                                _('Invalid placeholder: {%(value)s}') % {'value': e.args[0]}
+                            )
 
         return JsonResponse({
             'item': preview_item,

src/pretix/locale/djangojs.pot

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-02-20 13:01+0000\n"
+"POT-Creation-Date: 2026-02-24 11:50+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"

src/pretix/presale/views/oidc_op.py

@@ -393,7 +393,6 @@ class TokenView(View):
 
             if grant.code_challenge_method == "S256":
                 expected_challenge = base64.urlsafe_b64encode(hashlib.sha256(request.POST["code_verifier"].encode()).digest()).decode().rstrip("=")
-                print(grant.code_challenge, expected_challenge)
                 if expected_challenge != grant.code_challenge:
                     return JsonResponse({
                         "error": "invalid_grant",

src/pretix/settings.py

@@ -211,6 +211,10 @@ USE_X_FORWARDED_HOST = config.getboolean('pretix', 'trust_x_forwarded_host', fal
 
 
 REQUEST_ID_HEADER = config.get('pretix', 'request_id_header', fallback=False)
+if REQUEST_ID_HEADER in config.cp.BOOLEAN_STATES:
+    raise ImproperlyConfigured(
+        "request_id_header should be set to a header name, not a boolean value."
+    )
 
 if config.getboolean('pretix', 'trust_x_forwarded_proto', fallback=False):
     SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')