VYPR
← All advisories
Medium severityOSV Advisory· Published Jan 20, 2026· Updated Apr 15, 2026

CVE-2026-0895

CVE-2026-0895

Description

The extension extends TYPO3’ FileSpool component, which was vulnerable to Insecure Deserialization prior to TYPO3-CORE-SA-2026-004 https://typo3.org/security/advisory/typo3-core-sa-2026-004 . Since the related fix is overwritten by the extension, using the extension with a patched TYPO3 core version still allows for Insecure Deserialization, because the affected vulnerable code was extracted from TYPO3 core to the extension. More information about this vulnerability can be found in the related TYPO3 Core Security Advisory TYPO3-CORE-SA-2026-004 https://typo3.org/security/advisory/typo3-core-sa-2026-004 .

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
cpsit/typo3-mailqueuePackagist
< 0.4.30.4.3
cpsit/typo3-mailqueuePackagist
>= 0.5.0, < 0.5.10.5.1

Affected products

1

Patches

2
12a0a35027bb

[SECURITY] Harden message deserialization in `QueueableFileTransport`

https://github.com/CPS-IT/mailqueueElias HäußlerJan 19, 2026via ghsa
commit
4 files changed · +28 −17
  • Classes/Exception/SerializedMessageIsInvalid.php+2 −1 modified
    @@ -31,11 +31,12 @@
  */
 final class SerializedMessageIsInvalid extends Exception
 {
-    public function __construct(string $file)
+    public function __construct(string $file, ?\Throwable $previous = null)
     {
         parent::__construct(
             sprintf('The file "%s" does not contain a valid serialized message.', $file),
             1709133596,
+            $previous,
         );
     }
 }
  • Classes/Mail/Transport/QueueableFileTransport.php+21 −11 modified
    @@ -51,8 +51,9 @@ public function __construct(
         string $path,
         ?EventDispatcher\EventDispatcherInterface $dispatcher = null,
         ?Log\LoggerInterface $logger = null,
+        Core\Serializer\PolymorphicDeserializer $deserializer = new Core\Serializer\PolymorphicDeserializer(),
     ) {
-        parent::__construct($path, $dispatcher, $logger);
+        parent::__construct($path, $dispatcher, $logger, $deserializer);
         $this->context = Core\Utility\GeneralUtility::makeInstance(Core\Context\Context::class);
     }
 
@@ -221,20 +222,29 @@ private function restoreItem(\SplFileInfo $file): Mail\Queue\MailQueueItem
     {
         $path = (string)$file->getRealPath();
         $lastChanged = $file->getMTime();
+        $exception = null;
 
         // Unserialize message
-        $message = unserialize((string)file_get_contents($path), [
-            'allowedClasses' => [
-                Mime\RawMessage::class,
-                Mime\Message::class,
-                Mime\Email::class,
-                Mailer\DelayedEnvelope::class,
-                Mailer\Envelope::class,
-            ],
-        ]);
+        try {
+            $message = $this->deserializer->deserialize(
+                (string)file_get_contents($path),
+                [
+                    Mailer\SentMessage::class,
+                    Mime\RawMessage::class,
+                    Mailer\Envelope::class,
+                    Mime\Address::class,
+                    Mime\Part\AbstractPart::class,
+                    Mime\Part\File::class, // This one does not extend AbstractPart
+                    Mime\Header\Headers::class,
+                    Mime\Header\HeaderInterface::class,
+                ],
+            );
+        } catch (\Throwable $exception) {
+            $message = null;
+        }
 
         if (!($message instanceof Mailer\SentMessage)) {
-            throw new Exception\SerializedMessageIsInvalid($path);
+            throw new Exception\SerializedMessageIsInvalid($path, $exception);
         }
 
         // Define mail state
  • composer.json+4 −4 modified
    @@ -18,9 +18,9 @@
 		"symfony/console": "^5.4 || ^6.4 || ^7.0",
 		"symfony/mailer": "^5.4 || ^6.4 || ^7.0",
 		"symfony/mime": "^5.4 || ^6.4 || ^7.0",
-		"typo3/cms-backend": "~11.5.42 || ~12.4.25 || ~13.4.3",
-		"typo3/cms-core": "~11.5.42 || ~12.4.25 || ~13.4.3",
-		"typo3/cms-fluid": "~11.5.42 || ~12.4.25 || ~13.4.3",
+		"typo3/cms-backend": "~11.5.49 || ~12.4.41 || ~13.4.23",
+		"typo3/cms-core": "~11.5.49 || ~12.4.41 || ~13.4.23",
+		"typo3/cms-fluid": "~11.5.49 || ~12.4.41 || ~13.4.23",
 		"typo3fluid/fluid": "^2.15 || ^4.0"
 	},
 	"require-dev": {
@@ -35,7 +35,7 @@
 		"phpunit/phpcov": "^9.0 || ^10.0",
 		"saschaegerer/phpstan-typo3": "^1.10",
 		"ssch/typo3-rector": "^2.0",
-		"typo3/cms-lowlevel": "~11.5.42 || ~12.4.25 || ~13.4.3",
+		"typo3/cms-lowlevel": "~11.5.49 || ~12.4.41 || ~13.4.23",
 		"typo3/coding-standards": "^0.7.0 || ^0.8.0",
 		"typo3/testing-framework": "^7.0.2 || ^8.0.9 || ^9.0.1"
 	},
  • ext_emconf.php+1 −1 modified
    @@ -32,7 +32,7 @@
     'author_company' => 'coding. powerful. systems. CPS GmbH',
     'constraints' => [
         'depends' => [
-            'typo3' => '11.5.42-13.4.99',
+            'typo3' => '11.5.49-13.4.99',
             'php' => '8.1.0-8.4.99',
         ],
     ],
fd09aa4e1a75

[SECURITY] Harden message deserialization in `QueueableFileTransport`

https://github.com/CPS-IT/mailqueueElias HäußlerJan 15, 2026via ghsa
commit
5 files changed · +28 −17
  • Classes/Exception/SerializedMessageIsInvalid.php+2 −1 modified
    @@ -25,11 +25,12 @@
  */
 final class SerializedMessageIsInvalid extends Exception
 {
-    public function __construct(string $file)
+    public function __construct(string $file, ?\Throwable $previous = null)
     {
         parent::__construct(
             sprintf('The file "%s" does not contain a valid serialized message.', $file),
             1709133596,
+            $previous,
         );
     }
 }
  • Classes/Mail/Transport/QueueableFileTransport.php+21 −11 modified
    @@ -45,8 +45,9 @@ public function __construct(
         string $path,
         ?EventDispatcher\EventDispatcherInterface $dispatcher = null,
         ?Log\LoggerInterface $logger = null,
+        Core\Serializer\PolymorphicDeserializer $deserializer = new Core\Serializer\PolymorphicDeserializer(),
     ) {
-        parent::__construct($path, $dispatcher, $logger);
+        parent::__construct($path, $dispatcher, $logger, $deserializer);
         $this->context = Core\Utility\GeneralUtility::makeInstance(Core\Context\Context::class);
     }
 
@@ -191,20 +192,29 @@ private function restoreItem(\SplFileInfo $file): Mail\Queue\MailQueueItem
     {
         $path = (string)$file->getRealPath();
         $lastChanged = $file->getMTime();
+        $exception = null;
 
         // Unserialize message
-        $message = unserialize((string)file_get_contents($path), [
-            'allowedClasses' => [
-                Mime\RawMessage::class,
-                Mime\Message::class,
-                Mime\Email::class,
-                Mailer\DelayedEnvelope::class,
-                Mailer\Envelope::class,
-            ],
-        ]);
+        try {
+            $message = $this->deserializer->deserialize(
+                (string)file_get_contents($path),
+                [
+                    Mailer\SentMessage::class,
+                    Mime\RawMessage::class,
+                    Mailer\Envelope::class,
+                    Mime\Address::class,
+                    Mime\Part\AbstractPart::class,
+                    Mime\Part\File::class, // This one does not extend AbstractPart
+                    Mime\Header\Headers::class,
+                    Mime\Header\HeaderInterface::class,
+                ],
+            );
+        } catch (\Throwable $exception) {
+            $message = null;
+        }
 
         if (!($message instanceof Mailer\SentMessage)) {
-            throw new Exception\SerializedMessageIsInvalid($path);
+            throw new Exception\SerializedMessageIsInvalid($path, $exception);
         }
 
         // Define mail state
  • composer.json+3 −3 modified
    @@ -21,15 +21,15 @@
 		"symfony/event-dispatcher-contracts": "^3.0",
 		"symfony/mailer": "^7.0",
 		"symfony/mime": "^7.0",
-		"typo3/cms-backend": "~12.4.25 || ~13.4.3",
-		"typo3/cms-core": "~12.4.25 || ~13.4.3",
+		"typo3/cms-backend": "~12.4.41 || ~13.4.23",
+		"typo3/cms-core": "~12.4.41 || ~13.4.23",
 		"typo3fluid/fluid": "^2.15 || ^4.0"
 	},
 	"require-dev": {
 		"eliashaeussler/version-bumper": "^3.0",
 		"phpunit/phpcov": "^10.0 || ^11.0",
 		"phpunit/phpunit": "^11.5 || ^12.0",
-		"typo3/cms-lowlevel": "~12.4.25 || ~13.4.3",
+		"typo3/cms-lowlevel": "~12.4.41 || ~13.4.23",
 		"typo3/testing-framework": "^8.3.1 || ^9.3.0"
 	},
 	"autoload": {
  • composer.lock+1 −1 modified
    @@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "28fc857b4600170d00e9d0abb259022a",
+    "content-hash": "9edf81ca56c7245371f875f7802f72dd",
     "packages": [
         {
             "name": "bacon/bacon-qr-code",
  • ext_emconf.php+1 −1 modified
    @@ -26,7 +26,7 @@
     'author_company' => 'coding. powerful. systems. CPS GmbH',
     'constraints' => [
         'depends' => [
-            'typo3' => '12.4.25-13.4.99',
+            'typo3' => '12.4.41-13.4.99',
             'php' => '8.2.0-8.5.99',
             'typed_extconf' => '0.3.0-1.99.99',
         ],

Vulnerability mechanics

Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

6

News mentions

0

No linked articles in our index yet.