diff --git a/package-lock.json b/package-lock.json
index e6fa744bd0aa..528d6676a293 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -36,7 +36,7 @@
         "glob": "^11.1.0",
         "globals": "^16.5.0",
         "jiti": "^2.5.1",
-        "jsdom": "^27.3.0",
+        "jsdom": "^27.4.0",
         "knip": "^5.73.4",
         "lodash": "^4.17.21",
         "npm-run-all": "^4.1.5",
@@ -2536,6 +2536,23 @@
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
+    "node_modules/@exodus/bytes": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/@exodus/bytes/-/bytes-1.8.0.tgz",
+      "integrity": "sha512-8JPn18Bcp8Uo1T82gR8lh2guEOa5KKU/IEKvvdp0sgmi7coPBWf1Doi1EXsGZb2ehc8ym/StJCjffYV+ne7sXQ==",
+      "dev": true,
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      },
+      "peerDependencies": {
+        "@exodus/crypto": "^1.0.0-rc.4"
+      },
+      "peerDependenciesMeta": {
+        "@exodus/crypto": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@fluent/syntax": {
       "version": "0.19.0",
       "resolved": "https://registry.npmjs.org/@fluent/syntax/-/syntax-0.19.0.tgz",
@@ -6171,15 +6188,15 @@
       "dev": true
     },
     "node_modules/html-encoding-sniffer": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-4.0.0.tgz",
-      "integrity": "sha512-Y22oTqIU4uuPgEemfz7NDJz6OeKf12Lsu+QC+s3BVpda64lTiMYCyGwg5ki4vFxkMwQdeZDl2adZoqUgdFuTgQ==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-6.0.0.tgz",
+      "integrity": "sha512-CV9TW3Y3f8/wT0BRFc1/KAVQ3TUHiXmaAb6VW9vtiMFf7SLoMd1PdAc4W3KFOFETBJUb90KatHqlsZMWV+R9Gg==",
       "dev": true,
       "dependencies": {
-        "whatwg-encoding": "^3.1.1"
+        "@exodus/bytes": "^1.6.0"
       },
       "engines": {
-        "node": ">=18"
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
       }
     },
     "node_modules/html-tags": {
@@ -6816,17 +6833,18 @@
       }
     },
     "node_modules/jsdom": {
-      "version": "27.3.0",
-      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-27.3.0.tgz",
-      "integrity": "sha512-GtldT42B8+jefDUC4yUKAvsaOrH7PDHmZxZXNgF2xMmymjUbRYJvpAybZAKEmXDGTM0mCsz8duOa4vTm5AY2Kg==",
+      "version": "27.4.0",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-27.4.0.tgz",
+      "integrity": "sha512-mjzqwWRD9Y1J1KUi7W97Gja1bwOOM5Ug0EZ6UDK3xS7j7mndrkwozHtSblfomlzyB4NepioNt+B2sOSzczVgtQ==",
       "dev": true,
       "dependencies": {
         "@acemir/cssom": "^0.9.28",
         "@asamuzakjp/dom-selector": "^6.7.6",
+        "@exodus/bytes": "^1.6.0",
         "cssstyle": "^5.3.4",
         "data-urls": "^6.0.0",
         "decimal.js": "^10.6.0",
-        "html-encoding-sniffer": "^4.0.0",
+        "html-encoding-sniffer": "^6.0.0",
         "http-proxy-agent": "^7.0.2",
         "https-proxy-agent": "^7.0.6",
         "is-potential-custom-element-name": "^1.0.1",
@@ -6836,7 +6854,6 @@
         "tough-cookie": "^6.0.0",
         "w3c-xmlserializer": "^5.0.0",
         "webidl-conversions": "^8.0.0",
-        "whatwg-encoding": "^3.1.1",
         "whatwg-mimetype": "^4.0.0",
         "whatwg-url": "^15.1.0",
         "ws": "^8.18.3",
@@ -11943,6 +11960,13 @@
         "levn": "^0.4.1"
       }
     },
+    "@exodus/bytes": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/@exodus/bytes/-/bytes-1.8.0.tgz",
+      "integrity": "sha512-8JPn18Bcp8Uo1T82gR8lh2guEOa5KKU/IEKvvdp0sgmi7coPBWf1Doi1EXsGZb2ehc8ym/StJCjffYV+ne7sXQ==",
+      "dev": true,
+      "requires": {}
+    },
     "@fluent/syntax": {
       "version": "0.19.0",
       "resolved": "https://registry.npmjs.org/@fluent/syntax/-/syntax-0.19.0.tgz",
@@ -14373,12 +14397,12 @@
       "dev": true
     },
     "html-encoding-sniffer": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-4.0.0.tgz",
-      "integrity": "sha512-Y22oTqIU4uuPgEemfz7NDJz6OeKf12Lsu+QC+s3BVpda64lTiMYCyGwg5ki4vFxkMwQdeZDl2adZoqUgdFuTgQ==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-6.0.0.tgz",
+      "integrity": "sha512-CV9TW3Y3f8/wT0BRFc1/KAVQ3TUHiXmaAb6VW9vtiMFf7SLoMd1PdAc4W3KFOFETBJUb90KatHqlsZMWV+R9Gg==",
       "dev": true,
       "requires": {
-        "whatwg-encoding": "^3.1.1"
+        "@exodus/bytes": "^1.6.0"
       }
     },
     "html-tags": {
@@ -14810,17 +14834,18 @@
       }
     },
     "jsdom": {
-      "version": "27.3.0",
-      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-27.3.0.tgz",
-      "integrity": "sha512-GtldT42B8+jefDUC4yUKAvsaOrH7PDHmZxZXNgF2xMmymjUbRYJvpAybZAKEmXDGTM0mCsz8duOa4vTm5AY2Kg==",
+      "version": "27.4.0",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-27.4.0.tgz",
+      "integrity": "sha512-mjzqwWRD9Y1J1KUi7W97Gja1bwOOM5Ug0EZ6UDK3xS7j7mndrkwozHtSblfomlzyB4NepioNt+B2sOSzczVgtQ==",
       "dev": true,
       "requires": {
         "@acemir/cssom": "^0.9.28",
         "@asamuzakjp/dom-selector": "^6.7.6",
+        "@exodus/bytes": "^1.6.0",
         "cssstyle": "^5.3.4",
         "data-urls": "^6.0.0",
         "decimal.js": "^10.6.0",
-        "html-encoding-sniffer": "^4.0.0",
+        "html-encoding-sniffer": "^6.0.0",
         "http-proxy-agent": "^7.0.2",
         "https-proxy-agent": "^7.0.6",
         "is-potential-custom-element-name": "^1.0.1",
@@ -14830,7 +14855,6 @@
         "tough-cookie": "^6.0.0",
         "w3c-xmlserializer": "^5.0.0",
         "webidl-conversions": "^8.0.0",
-        "whatwg-encoding": "^3.1.1",
         "whatwg-mimetype": "^4.0.0",
         "whatwg-url": "^15.1.0",
         "ws": "^8.18.3",
diff --git a/package.json b/package.json
index 0412410617fd..56fbe51c794b 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "glob": "^11.1.0",
     "globals": "^16.5.0",
     "jiti": "^2.5.1",
-    "jsdom": "^27.3.0",
+    "jsdom": "^27.4.0",
     "knip": "^5.73.4",
     "lodash": "^4.17.21",
     "npm-run-all": "^4.1.5",