← Back to CVE Explorer

CVE-2026-71498

Full vulnerability record from the local CVENow database.

Description

node-re2 provides RE2 regular expression bindings for Node.js. Prior to version 1.26.1, passing a Buffer whose final bytes form a truncated (incomplete) multi-byte UTF-8 sequence could cause the native binding to read past the end of the allocated buffer while attempting to decode the final, incomplete code point. This could result in an out-of-bounds read and potential disclosure of adjacent memory contents. This issue is fixed in version 1.26.1.

Severity
MEDIUM
CVSS score
5.1 (v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-08-06 22:18:32.207000
Last modified
2026-10-24 15:10:00.190000
View original CVE JSON
{
  "id": "CVE-2026-71498",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-06T22:18:32.207",
  "lastModified": "2026-10-24T15:10:00.190",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "node-re2 provides RE2 regular expression bindings for Node.js. Prior to version 1.26.1, passing a Buffer whose final bytes form a truncated (incomplete) multi-byte UTF-8 sequence could cause the native binding to read past the end of the allocated buffer while attempting to decode the final, incomplete code point. This could result in an out-of-bounds read and potential disclosure of adjacent memory contents. This issue is fixed in version 1.26.1."
    },
    {
      "lang": "es",
      "value": "node-re2 proporciona enlaces de expresiones regulares RE2 para Node.js. Antes de la versión 1.26.1, pasar un Buffer cuyos bytes finales formaran una secuencia UTF-8 multibyte truncada (incompleta) podría causar que el enlace nativo leyera más allá del final del buffer asignado mientras intentaba decodificar el punto de código final e incompleto. Esto podría resultar en una lectura fuera de límites y una posible divulgación del contenido de memoria adyacente. Este problema está solucionado en la versión 1.26.1."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "uhop",
          "product": "node-re2",
          "versions": [
            {
              "version": "< 1.26.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
          "baseScore": 5.1,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 2.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-07T14:57:08.840534Z",
          "id": "CVE-2026-71498",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/uhop/node-re2/commit/9d72042a6a0da5bc523908b04808ea0e23867cc4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/uhop/node-re2/issues/272",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/uhop/node-re2/security/advisories/GHSA-j4r3-hg7j-8chg",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/uhop/node-re2/security/advisories/GHSA-j4r3-hg7j-8chg",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}