chore(release): 9.2.0-alpha.3 [skip ci]

# [9.2.0-alpha.3](https://github.com/parse-community/parse-server/compare/9.2.0-alpha.2...9.2.0-alpha.3) (2026-01-27)

### Features

* Upgrade to parse 8.0.3 and @parse/push-adapter 8.2.0 ([#10021](https://github.com/parse-community/parse-server/issues/10021)) ([9833fdb](9833fdb111))

changelogs/CHANGELOG_alpha.md

@@ -1,3 +1,17 @@
+# [9.2.0-alpha.3](https://github.com/parse-community/parse-server/compare/9.2.0-alpha.2...9.2.0-alpha.3) (2026-01-27)
+
+
+### Features
+
+* Upgrade to parse 8.0.3 and @parse/push-adapter 8.2.0 ([#10021](https://github.com/parse-community/parse-server/issues/10021)) ([9833fdb](https://github.com/parse-community/parse-server/commit/9833fdb111c373dc75fc74ea5f9209408186a475))
+
+# [9.2.0-alpha.2](https://github.com/parse-community/parse-server/compare/9.2.0-alpha.1...9.2.0-alpha.2) (2026-01-24)
+
+
+### Bug Fixes
+
+* MongoDB timeout errors unhandled and potentially revealing internal data ([#10020](https://github.com/parse-community/parse-server/issues/10020)) ([1d3336d](https://github.com/parse-community/parse-server/commit/1d3336d128671c974b419b9b34db35ada7d1a44d))
+
 # [9.2.0-alpha.1](https://github.com/parse-community/parse-server/compare/9.1.1...9.2.0-alpha.1) (2026-01-24)
 
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "parse-server",
-  "version": "9.2.0-alpha.1",
+  "version": "9.2.0-alpha.3",
   "description": "An express module providing a Parse-compatible API server",
   "main": "lib/index.js",
   "repository": {
@@ -26,7 +26,7 @@
     "@graphql-tools/schema": "10.0.23",
     "@graphql-tools/utils": "10.8.6",
     "@parse/fs-files-adapter": "3.0.0",
-    "@parse/push-adapter": "8.1.0",
+    "@parse/push-adapter": "8.2.0",
     "bcryptjs": "3.0.2",
     "commander": "14.0.2",
     "cors": "2.8.5",
@@ -42,13 +42,13 @@
     "jsonwebtoken": "9.0.2",
     "jwks-rsa": "3.2.0",
     "ldapjs": "3.0.7",
-    "lodash": "4.17.21",
+    "lodash": "4.17.23",
     "lru-cache": "10.4.0",
     "mime": "4.0.7",
     "mongodb": "6.20.0",
     "mustache": "4.2.0",
     "otpauth": "9.4.0",
-    "parse": "8.0.0",
+    "parse": "8.0.3",
     "path-to-regexp": "8.3.0",
     "pg-monitor": "3.0.0",
     "pg-promise": "12.2.0",
@@ -68,7 +68,7 @@
     "@actions/core": "1.11.1",
     "@apollo/client": "3.13.8",
     "@babel/cli": "7.27.0",
-    "@babel/core": "7.27.4",
+    "@babel/core": "7.28.6",
     "@babel/eslint-parser": "7.28.0",
     "@babel/plugin-proposal-object-rest-spread": "7.20.7",
     "@babel/plugin-transform-flow-strip-types": "7.26.5",
@@ -108,7 +108,7 @@
     "prettier": "2.0.5",
     "semantic-release": "24.2.5",
     "typescript": "5.8.3",
-    "typescript-eslint": "8.33.1",
+    "typescript-eslint": "8.53.1",
     "yaml": "2.8.0"
   },
   "scripts": {

spec/MongoStorageAdapter.spec.js

@@ -1064,6 +1064,129 @@ describe_only_db('mongo')('MongoStorageAdapter', () => {
     });
   });
 
+  describe('transient error handling', () => {
+    it('should transform MongoWaitQueueTimeoutError to Parse.Error.INTERNAL_SERVER_ERROR', async () => {
+      const adapter = new MongoStorageAdapter({ uri: databaseURI });
+      await adapter.connect();
+
+      // Create a mock error with the MongoWaitQueueTimeoutError name
+      const mockError = new Error('Timed out while checking out a connection from connection pool');
+      mockError.name = 'MongoWaitQueueTimeoutError';
+
+      try {
+        adapter.handleError(mockError);
+        fail('Expected handleError to throw');
+      } catch (error) {
+        expect(error instanceof Parse.Error).toBe(true);
+        expect(error.code).toBe(Parse.Error.INTERNAL_SERVER_ERROR);
+        expect(error.message).toBe('Database error');
+      }
+    });
+
+    it('should transform MongoServerSelectionError to Parse.Error.INTERNAL_SERVER_ERROR', async () => {
+      const adapter = new MongoStorageAdapter({ uri: databaseURI });
+      await adapter.connect();
+
+      const mockError = new Error('Server selection timed out');
+      mockError.name = 'MongoServerSelectionError';
+
+      try {
+        adapter.handleError(mockError);
+        fail('Expected handleError to throw');
+      } catch (error) {
+        expect(error instanceof Parse.Error).toBe(true);
+        expect(error.code).toBe(Parse.Error.INTERNAL_SERVER_ERROR);
+        expect(error.message).toBe('Database error');
+      }
+    });
+
+    it('should transform MongoNetworkTimeoutError to Parse.Error.INTERNAL_SERVER_ERROR', async () => {
+      const adapter = new MongoStorageAdapter({ uri: databaseURI });
+      await adapter.connect();
+
+      const mockError = new Error('Network timeout');
+      mockError.name = 'MongoNetworkTimeoutError';
+
+      try {
+        adapter.handleError(mockError);
+        fail('Expected handleError to throw');
+      } catch (error) {
+        expect(error instanceof Parse.Error).toBe(true);
+        expect(error.code).toBe(Parse.Error.INTERNAL_SERVER_ERROR);
+        expect(error.message).toBe('Database error');
+      }
+    });
+
+    it('should transform MongoNetworkError to Parse.Error.INTERNAL_SERVER_ERROR', async () => {
+      const adapter = new MongoStorageAdapter({ uri: databaseURI });
+      await adapter.connect();
+
+      const mockError = new Error('Network error');
+      mockError.name = 'MongoNetworkError';
+
+      try {
+        adapter.handleError(mockError);
+        fail('Expected handleError to throw');
+      } catch (error) {
+        expect(error instanceof Parse.Error).toBe(true);
+        expect(error.code).toBe(Parse.Error.INTERNAL_SERVER_ERROR);
+        expect(error.message).toBe('Database error');
+      }
+    });
+
+    it('should transform TransientTransactionError to Parse.Error.INTERNAL_SERVER_ERROR', async () => {
+      const adapter = new MongoStorageAdapter({ uri: databaseURI });
+      await adapter.connect();
+
+      const mockError = new Error('Transient transaction error');
+      mockError.hasErrorLabel = label => label === 'TransientTransactionError';
+
+      try {
+        adapter.handleError(mockError);
+        fail('Expected handleError to throw');
+      } catch (error) {
+        expect(error instanceof Parse.Error).toBe(true);
+        expect(error.code).toBe(Parse.Error.INTERNAL_SERVER_ERROR);
+        expect(error.message).toBe('Database error');
+      }
+    });
+
+    it('should not transform non-transient errors', async () => {
+      const adapter = new MongoStorageAdapter({ uri: databaseURI });
+      await adapter.connect();
+
+      const mockError = new Error('Some other error');
+      mockError.name = 'SomeOtherError';
+
+      try {
+        adapter.handleError(mockError);
+        fail('Expected handleError to throw');
+      } catch (error) {
+        expect(error instanceof Parse.Error).toBe(false);
+        expect(error.message).toBe('Some other error');
+      }
+    });
+
+    it('should handle null/undefined errors', async () => {
+      const adapter = new MongoStorageAdapter({ uri: databaseURI });
+      await adapter.connect();
+
+      try {
+        adapter.handleError(null);
+        fail('Expected handleError to throw');
+      } catch (error) {
+        expect(error).toBeNull();
+      }
+
+      try {
+        adapter.handleError(undefined);
+        fail('Expected handleError to throw');
+      } catch (error) {
+        expect(error).toBeUndefined();
+      }
+    });
+  });
+
   describe('MongoDB Client Metadata', () => {
     it('should not pass metadata to MongoClient by default', async () => {
       const adapter = new MongoStorageAdapter({ uri: databaseURI });

spec/ParseServer.spec.js

@@ -55,7 +55,7 @@ describe('Server Url Checks', () => {
     parseServerProcess.on('close', async code => {
       expect(code).toEqual(1);
       expect(stdout).not.toContain('UnhandledPromiseRejectionWarning');
-      expect(stderr).toContain('MongoServerSelectionError');
+      expect(stderr).toContain('Database error');
       await reconfigureServer();
       done();
     });

spec/index.spec.js

@@ -73,7 +73,7 @@ describe('server', () => {
       }),
     });
     const error = await server.start().catch(e => e);
-    expect(`${error}`.includes('MongoServerSelectionError')).toBeTrue();
+    expect(`${error}`.includes('Database error')).toBeTrue();
     await reconfigureServer();
   });
 

src/Adapters/Storage/Mongo/MongoStorageAdapter.js

@@ -27,6 +27,36 @@ const ReadPreference = mongodb.ReadPreference;
 
 const MongoSchemaCollectionName = '_SCHEMA';
 
+/**
+ * Determines if a MongoDB error is a transient infrastructure error
+ * (connection pool, network, server selection) as opposed to a query-level error.
+ */
+function isTransientError(error) {
+  if (!error) {
+    return false;
+  }
+
+  // Connection pool, network, and server selection errors
+  const transientErrorNames = [
+    'MongoWaitQueueTimeoutError',
+    'MongoServerSelectionError',
+    'MongoNetworkTimeoutError',
+    'MongoNetworkError',
+  ];
+  if (transientErrorNames.includes(error.name)) {
+    return true;
+  }
+
+  // Check for MongoDB's transient transaction error label
+  if (typeof error.hasErrorLabel === 'function') {
+    if (error.hasErrorLabel('TransientTransactionError')) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
 const storageAdapterAllCollections = mongoAdapter => {
   return mongoAdapter
     .connect()
@@ -252,6 +282,13 @@ export class MongoStorageAdapter implements StorageAdapter {
       delete this.connectionPromise;
       logger.error('Received unauthorized error', { error: error });
     }
+
+    // Transform infrastructure/transient errors into Parse.Error.INTERNAL_SERVER_ERROR
+    if (isTransientError(error)) {
+      logger.error('Database transient error', error);
+      throw new Parse.Error(Parse.Error.INTERNAL_SERVER_ERROR, 'Database error');
+    }
+
     throw error;
   }
 

src/middlewares.js

@@ -378,9 +378,9 @@ export const handleParseSession = async (req, res, next) => {
       next(error);
       return;
     }
-    // TODO: Determine the correct error scenario.
+    // Log full error details internally, but don't expose to client
     req.config.loggerController.error('error getting auth for sessionToken', error);
-    throw new Parse.Error(Parse.Error.UNKNOWN_ERROR, error);
+    next(new Parse.Error(Parse.Error.UNKNOWN_ERROR, 'Unknown error'));
   }
 };