{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2864b3c6260a3bfd52d2db3e70d1a079de108a61"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "v7.1.3",
                "range": [
                  {
                    "fixed": "4d36b828f7c1c6a1f0de9ef932fefadcca0edace"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2864b3c6260a3bfd52d2db3e70d1a079de108a61"
            },
            {
              "fixed": "4d36b828f7c1c6a1f0de9ef932fefadcca0edace"
            }
          ],
          "repo": "https://github.com/yahoo/serialize-javascript",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-m5mm-p8h7-m29v"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115897.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "range": [
              {
                "fixed": "7.1.3"
              }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
          }
        ]
      },
      {
        "extracted_events": [
          {
            "range": [
              {
                "fixed": "7.1.3"
              },
              {
                "fixed": "7.1.3"
              }
            ],
            "source": "DESCRIPTION"
          }
        ]
      }
    ]
  },
  "details": "Serialize JavaScript serializes JavaScript values to a superset of JSON that includes regular expressions and functions. Prior to 7.1.3, the function-source escaping logic does not neutralize a bare closing-script prefix when attacker-influenced function source text ends exactly at that prefix. Because each function body is escaped independently, a delimiter supplied by surrounding serialized output can terminate an HTML script element, and a later serialized value supplies injected markup that becomes a live element in the page. Exploitation requires control of a serialized function's source text, such as through a spoofed toString(). This issue is fixed in version 7.1.3.",
  "id": "CVE-2026-115897",
  "modified": "2026-10-25T02:30:24.284420624Z",
  "published": "2026-10-23T21:37:41.097Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/yahoo/serialize-javascript/releases/tag/v7.1.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115897.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-m5mm-p8h7-m29v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115897"
    },
    {
      "type": "FIX",
      "url": "https://github.com/yahoo/serialize-javascript/commit/2864b3c6260a3bfd52d2db3e70d1a079de108a61"
    },
    {
      "type": "FIX",
      "url": "https://github.com/yahoo/serialize-javascript/pull/235"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Serialize JavaScript: Cross-site scripting (XSS) via unescaped \u003c/script at the end of a serialized function body"
}