Publish GHSA-mh29-5h37-fv8m

Author: advisory-database[bot]

advisories/github-reviewed/2025/11/GHSA-mh29-5h37-fv8m/GHSA-mh29-5h37-fv8m.json

@@ -0,0 +1,65 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-mh29-5h37-fv8m",
+  "modified": "2025-11-14T14:29:48Z",
+  "published": "2025-11-14T14:29:48Z",
+  "aliases": [
+    "CVE-2025-64718"
+  ],
+  "summary": "js-yaml has prototype pollution in merge (<<)",
+  "details": "### Impact\n\nIn js-yaml 4.1.0 and below, it's possible for an attacker to modify the prototype of the result of a parsed yaml document via prototype pollution (`__proto__`). All users who parse untrusted yaml documents may be impacted.\n\n### Patches\n\nProblem is patched in js-yaml 4.1.1.\n\n### Workarounds\n\nYou can protect against this kind of attack on the server by using `node --disable-proto=delete` or `deno` (in Deno, pollution protection is on by default).\n\n### References\n\nhttps://cheatsheetseries.owasp.org/cheatsheets/Prototype_Pollution_Prevention_Cheat_Sheet.html",
+  "severity": [
+    {
+      "type": "CVSS_V3",
+      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "npm",
+        "name": "js-yaml"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "4.1.1"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-mh29-5h37-fv8m"
+    },
+    {
+      "type": "ADVISORY",
+      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64718"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/nodeca/js-yaml/commit/383665ff4248ec2192d1274e934462bb30426879"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/nodeca/js-yaml"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-1321"
+    ],
+    "severity": "MODERATE",
+    "github_reviewed": true,
+    "github_reviewed_at": "2025-11-14T14:29:48Z",
+    "nvd_published_at": "2025-11-13T16:15:57Z"
+  }
+}