diff --git a/advisories/github-reviewed/2026/07/GHSA-xvcm-6775-5m9r/GHSA-xvcm-6775-5m9r.json b/advisories/github-reviewed/2026/07/GHSA-xvcm-6775-5m9r/GHSA-xvcm-6775-5m9r.json
index dc696d14b26..29822b117f5 100644
--- a/advisories/github-reviewed/2026/07/GHSA-xvcm-6775-5m9r/GHSA-xvcm-6775-5m9r.json
+++ b/advisories/github-reviewed/2026/07/GHSA-xvcm-6775-5m9r/GHSA-xvcm-6775-5m9r.json
@@ -1,7 +1,7 @@
 {
   "schema_version": "1.4.0",
   "id": "GHSA-xvcm-6775-5m9r",
-  "modified": "2026-08-14T19:21:15Z",
+  "modified": "2026-08-14T19:21:17Z",
   "published": "2026-07-21T19:02:33Z",
   "aliases": [
     "CVE-2026-59880"
@@ -25,7 +25,7 @@
           "type": "ECOSYSTEM",
           "events": [
             {
-              "introduced": "0"
+              "introduced": "4.0.0-beta.1"
             },
             {
               "fixed": "4.3.9"
@@ -52,6 +52,25 @@
           ]
         }
       ]
+    },
+    {
+      "package": {
+        "ecosystem": "npm",
+        "name": "immutable"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "3.8.4"
+            }
+          ]
+        }
+      ]
     }
   ],
   "references": [
@@ -75,6 +94,10 @@
       "type": "PACKAGE",
       "url": "https://github.com/immutable-js/immutable-js"
     },
+    {
+      "type": "WEB",
+      "url": "https://github.com/immutable-js/immutable-js/releases/tag/v3.8.4"
+    },
     {
       "type": "WEB",
       "url": "https://github.com/immutable-js/immutable-js/releases/tag/v4.3.9"