diff --git a/src/GitHubVulnerabilities2Db/Collector/AdvisoryQueryBuilder.cs b/src/GitHubVulnerabilities2Db/Collector/AdvisoryQueryBuilder.cs
index d3844e1e86..1f7c2cb7b0 100644
--- a/src/GitHubVulnerabilities2Db/Collector/AdvisoryQueryBuilder.cs
+++ b/src/GitHubVulnerabilities2Db/Collector/AdvisoryQueryBuilder.cs
@@ -4,11 +4,19 @@
 using System;
 using System.Linq;
 using GitHubVulnerabilities2Db.GraphQL;
+using Newtonsoft.Json;
 
 namespace GitHubVulnerabilities2Db.Collector
 {
     public class AdvisoryQueryBuilder : IAdvisoryQueryBuilder
     {
+        private const string SecurityAdvisoryFields = @"databaseId
+    ghsaId
+    permalink
+    severity
+    withdrawnAt
+    updatedAt";
+
         public int GetMaximumResultsPerRequest() => 100;
 
         public string CreateSecurityAdvisoriesQuery(DateTimeOffset? updatedSince = null, string afterCursor = null)
@@ -20,27 +28,21 @@ public string CreateSecurityAdvisoriesQuery(DateTimeOffset? updatedSince = null,
     edges {
       cursor
       node {
-        databaseId
-        permalink
-        severity
-        withdrawnAt
-        updatedAt
+        " + SecurityAdvisoryFields + @"
         " + CreateVulnerabilitiesConnectionQuery() + @"
       }
     }
   }
 }";
 
+        /// <summary>
+        /// Source: https://docs.github.com/en/enterprise-cloud@latest/graphql/reference/queries#securityadvisory
+        /// </summary>
         public string CreateSecurityAdvisoryQuery(SecurityAdvisory advisory)
             => @"
 {
-  securityAdvisory(databaseId: " + advisory.DatabaseId + @") {
-    severity
-    updatedAt
-    identifiers {
-      type
-      value
-    }
+  securityAdvisory(ghsaId: " + JsonConvert.SerializeObject(advisory.GhsaId) + @") {
+    " + SecurityAdvisoryFields + @"
     " + CreateVulnerabilitiesConnectionQuery(advisory.Vulnerabilities?.Edges?.Last()?.Cursor) + @"
   }
 }";
diff --git a/src/GitHubVulnerabilities2Db/Collector/AdvisoryQueryService.cs b/src/GitHubVulnerabilities2Db/Collector/AdvisoryQueryService.cs
index 4183a0e6d4..303ad414da 100644
--- a/src/GitHubVulnerabilities2Db/Collector/AdvisoryQueryService.cs
+++ b/src/GitHubVulnerabilities2Db/Collector/AdvisoryQueryService.cs
@@ -53,7 +53,7 @@ private async Task<SecurityAdvisory> FetchAllVulnerabilitiesAsync(SecurityAdviso
             var lastVulnerabilitiesFetchedCount = advisory.Vulnerabilities?.Edges?.Count() ?? 0;
             while (lastVulnerabilitiesFetchedCount == _queryBuilder.GetMaximumResultsPerRequest())
             {
-                _logger.LogInformation("Fetching more vulnerabilities for advisory with database key {GitHubDatabaseKey}", advisory.DatabaseId);
+                _logger.LogInformation("Fetching more vulnerabilities for advisory with database key {GitHubDatabaseKey} / GHSA ID {GhsaId}", advisory.DatabaseId, advisory.GhsaId);
                 var queryForAdditionalVulnerabilities = _queryBuilder.CreateSecurityAdvisoryQuery(advisory);
                 var responseForAdditionalVulnerabilities = await _queryService.QueryAsync(queryForAdditionalVulnerabilities, token);
                 var advisoryWithAdditionalVulnerabilities = responseForAdditionalVulnerabilities.Data.SecurityAdvisory;
diff --git a/src/GitHubVulnerabilities2Db/GraphQL/QueryResponse.cs b/src/GitHubVulnerabilities2Db/GraphQL/QueryResponse.cs
index 7967d515b3..f74e1c8472 100644
--- a/src/GitHubVulnerabilities2Db/GraphQL/QueryResponse.cs
+++ b/src/GitHubVulnerabilities2Db/GraphQL/QueryResponse.cs
@@ -11,6 +11,16 @@ namespace GitHubVulnerabilities2Db.GraphQL
     public class QueryResponse
     {
         public QueryResponseData Data { get; set; }
+        public List<QueryError> Errors { get; set; }
+    }
+
+    /// <summary>
+    /// The optional error details returned by the GraphQL endpoint.
+    /// See: https://www.apollographql.com/docs/react/data/error-handling/#graphql-errors
+    /// </summary>
+    public class QueryError
+    {
+        public string Message { get; set; }
     }
 
     /// <summary>
diff --git a/src/GitHubVulnerabilities2Db/GraphQL/QueryService.cs b/src/GitHubVulnerabilities2Db/GraphQL/QueryService.cs
index 4f56c49693..6ac52834a5 100644
--- a/src/GitHubVulnerabilities2Db/GraphQL/QueryService.cs
+++ b/src/GitHubVulnerabilities2Db/GraphQL/QueryService.cs
@@ -39,7 +39,16 @@ public async Task<QueryResponse> QueryAsync(string query, CancellationToken toke
             };
 
             var response = await MakeWebRequestAsync(queryJObject.ToString(), token);
-            return JsonConvert.DeserializeObject<QueryResponse>(response);
+            var queryResponse = JsonConvert.DeserializeObject<QueryResponse>(response);
+
+            if (queryResponse.Errors != null && queryResponse.Errors.Count > 0)
+            {
+                throw new InvalidOperationException(
+                    "The GitHub GraphQL response returned errors in the response JSON. " +
+                    $"Response body:{Environment.NewLine}{response}");
+            }
+
+            return queryResponse;
         }
 
         private async Task<string> MakeWebRequestAsync(string query, CancellationToken token)
@@ -47,7 +56,15 @@ private async Task<string> MakeWebRequestAsync(string query, CancellationToken t
             using (var request = CreateRequest(query))
             using (var response = await _client.SendAsync(request, token))
             {
-                return await response.Content.ReadAsStringAsync();
+                var responseBody = await response.Content.ReadAsStringAsync();
+                if (!response.IsSuccessStatusCode)
+                {
+                    throw new InvalidOperationException(
+                        $"The GitHub GraphQL response returned status code {(int)response.StatusCode} {response.ReasonPhrase}. " +
+                        $"Response body:{Environment.NewLine}{responseBody}");
+                }
+
+                return responseBody;
             }
         }
 
diff --git a/src/GitHubVulnerabilities2Db/GraphQL/SecurityAdvisory.cs b/src/GitHubVulnerabilities2Db/GraphQL/SecurityAdvisory.cs
index 6a3ce91874..8abba84abe 100644
--- a/src/GitHubVulnerabilities2Db/GraphQL/SecurityAdvisory.cs
+++ b/src/GitHubVulnerabilities2Db/GraphQL/SecurityAdvisory.cs
@@ -11,6 +11,7 @@ namespace GitHubVulnerabilities2Db.GraphQL
     public class SecurityAdvisory : INode
     {
         public int DatabaseId { get; set; }
+        public string GhsaId { get; set; }
         public string Permalink { get; set; }
         public string Severity { get; set; }
         public DateTimeOffset UpdatedAt { get; set; }
diff --git a/src/GitHubVulnerabilities2Db/Job.cs b/src/GitHubVulnerabilities2Db/Job.cs
index c5fe62cda5..2b953cd3e1 100644
--- a/src/GitHubVulnerabilities2Db/Job.cs
+++ b/src/GitHubVulnerabilities2Db/Job.cs
@@ -34,7 +34,8 @@ public class Job : JsonConfigurationJob, IDisposable
         public override async Task Run()
         {
             var collector = _serviceProvider.GetRequiredService<IAdvisoryCollector>();
-            while (await collector.ProcessAsync(CancellationToken.None)) ;
+            while (await collector.ProcessAsync(CancellationToken.None));
+            
         }
 
         protected override void ConfigureJobServices(IServiceCollection services, IConfigurationRoot configurationRoot)
diff --git a/tests/GitHubVulnerabilities2Db.Facts/QueryServiceFacts.cs b/tests/GitHubVulnerabilities2Db.Facts/QueryServiceFacts.cs
index b35cecbd8d..b31fc39546 100644
--- a/tests/GitHubVulnerabilities2Db.Facts/QueryServiceFacts.cs
+++ b/tests/GitHubVulnerabilities2Db.Facts/QueryServiceFacts.cs
@@ -2,6 +2,8 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
+using System.Collections.Generic;
+using System.Net;
 using System.Net.Http;
 using System.Net.Http.Headers;
 using System.Text;
@@ -56,6 +58,56 @@ public async Task Success()
             Assert.True(_handler.WasCalled);
         }
 
+        [Fact]
+        public async Task ErrorStatusCodeIsRejected()
+        {
+            // Arrange
+            var query = "someString";
+            _handler.ExpectedQueryContent = (new JObject { ["query"] = query }).ToString();
+
+            _handler.ExpectedEndpoint = new Uri("https://graphQL.net");
+            _configuration.GitHubGraphQLQueryEndpoint = _handler.ExpectedEndpoint;
+
+            _handler.ExpectedApiKey = "patpatpat";
+            _configuration.GitHubPersonalAccessToken = _handler.ExpectedApiKey;
+
+            var response = new QueryResponse();
+            _handler.ResponseMessage = new HttpResponseMessage(HttpStatusCode.BadRequest)
+            {
+                Content = new StringContent(JsonConvert.SerializeObject(response))
+            };
+
+            // Act & Assert
+            var ex = await Assert.ThrowsAsync<InvalidOperationException>(() => _service.QueryAsync(query, new CancellationToken()));
+            Assert.True(_handler.WasCalled);
+            Assert.Equal("The GitHub GraphQL response returned status code 400 Bad Request. Response body:\r\n{\"Data\":null,\"Errors\":null}", ex.Message);
+        }
+
+        [Fact]
+        public async Task ErrorResponseJsonIsRejected()
+        {
+            // Arrange
+            var query = "someString";
+            _handler.ExpectedQueryContent = (new JObject { ["query"] = query }).ToString();
+
+            _handler.ExpectedEndpoint = new Uri("https://graphQL.net");
+            _configuration.GitHubGraphQLQueryEndpoint = _handler.ExpectedEndpoint;
+
+            _handler.ExpectedApiKey = "patpatpat";
+            _configuration.GitHubPersonalAccessToken = _handler.ExpectedApiKey;
+
+            var response = new QueryResponse { Errors = new List<QueryError> { new QueryError { Message = "Query = not great" } } };
+            _handler.ResponseMessage = new HttpResponseMessage(HttpStatusCode.OK)
+            {
+                Content = new StringContent(JsonConvert.SerializeObject(response))
+            };
+
+            // Act & Assert
+            var ex = await Assert.ThrowsAsync<InvalidOperationException>(() => _service.QueryAsync(query, new CancellationToken()));
+            Assert.True(_handler.WasCalled);
+            Assert.Equal("The GitHub GraphQL response returned errors in the response JSON. Response body:\r\n{\"Data\":null,\"Errors\":[{\"Message\":\"Query = not great\"}]}", ex.Message);
+        }
+
         private class QueryServiceHttpClientHandler : HttpClientHandler
         {
             protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)