From 60f80d5a39cc52ccba75043e6a67093b002540e4 Mon Sep 17 00:00:00 2001
From: Damian Mooyman <damian.m@rushdigital.co.nz>
Date: Tue, 4 Aug 2026 13:55:52 +1200
Subject: [PATCH] Improve GHSA-866g-f22w-33x8

---
 .../GHSA-866g-f22w-33x8.json                  | 61 ++++++++++++++++---
 1 file changed, 52 insertions(+), 9 deletions(-)

diff --git a/advisories/github-reviewed/2026/05/GHSA-866g-f22w-33x8/GHSA-866g-f22w-33x8.json b/advisories/github-reviewed/2026/05/GHSA-866g-f22w-33x8/GHSA-866g-f22w-33x8.json
index ac8cf88b0a98..b1d15872eaff 100644
--- a/advisories/github-reviewed/2026/05/GHSA-866g-f22w-33x8/GHSA-866g-f22w-33x8.json
+++ b/advisories/github-reviewed/2026/05/GHSA-866g-f22w-33x8/GHSA-866g-f22w-33x8.json
@@ -1,21 +1,17 @@
 {
   "schema_version": "1.4.0",
   "id": "GHSA-866g-f22w-33x8",
-  "modified": "2026-05-29T16:18:57Z",
+  "modified": "2026-05-29T16:18:59Z",
   "published": "2026-05-18T00:31:37Z",
   "aliases": [
     "CVE-2026-8769"
   ],
   "summary": "@ai-sdk/provider-utils has an Uncontrolled Resource Consumption issue",
-  "details": "A vulnerability was determined in Vercel AI up to 3.0.97. The impacted element is the function `createJsonResponseHandler/createJsonErrorResponseHandler` of the file `packages/provider-utils/src/response-handler.ts` of the component `provider-utils`. This manipulation causes resource consumption. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.",
+  "details": "Versions of `@ai-sdk/provider-utils` before 3.0.28, from 4.0.0 before 4.0.33, and from 5.0.0 before 5.0.1 are vulnerable to uncontrolled resource consumption. The `createJsonResponseHandler`, `createJsonErrorResponseHandler`, and `createStatusCodeErrorResponseHandler` functions in `packages/provider-utils/src/response-handler.ts` read response bodies without a shared size limit, allowing a remote attacker with low privileges to cause excessive memory consumption. The exploit has been publicly disclosed and may be utilized.",
   "severity": [
     {
       "type": "CVSS_V3",
-      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
-    },
-    {
-      "type": "CVSS_V4",
-      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"
+      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
     }
   ],
   "affected": [
@@ -32,10 +28,57 @@
               "introduced": "0"
             },
             {
-              "last_affected": "3.0.97"
+              "fixed": "3.0.28"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 3.0.27"
+      }
+    },
+    {
+      "package": {
+        "ecosystem": "npm",
+        "name": "@ai-sdk/provider-utils"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "4.0.0"
+            },
+            {
+              "fixed": "4.0.33"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 4.0.32"
+      }
+    },
+    {
+      "package": {
+        "ecosystem": "npm",
+        "name": "@ai-sdk/provider-utils"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "5.0.0"
+            },
+            {
+              "fixed": "5.0.1"
             }
           ]
         }
+      ],
+      "versions": [
+        "5.0.0"
       ]
     }
   ],
@@ -69,7 +112,7 @@
     "cwe_ids": [
       "CWE-400"
     ],
-    "severity": "LOW",
+    "severity": "MODERATE",
     "github_reviewed": true,
     "github_reviewed_at": "2026-05-29T16:18:57Z",
     "nvd_published_at": "2026-05-17T23:17:03Z"