CVE-2026-54499

{
  "id": "CVE-2026-54499",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-08T23:16:54.690",
  "lastModified": "2026-10-25T17:10:00.197",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages. Prior to 1.12.2, Stanza model loaders such as stanza.models.common.pretrain.Pretrain.load() attempt torch.load(..., weights_only=True) but fall back to torch.load(..., weights_only=False) on attacker-controllable pickle.UnpicklingError, allowing a malicious .pt pretrain or model file to execute arbitrary pickle code when a Stanza NLP pipeline loads it. This issue is fixed in version 1.12.2."
    },
    {
      "lang": "es",
      "value": "Stanza es una biblioteca Python de PNL de Stanford para tokenización, segmentación de oraciones, NER y análisis sintáctico de muchos lenguajes humanos. Antes de la versión 1.12.2, los cargadores de modelos de Stanza, como stanza.models.common.pretrain.Pretrain.load(), intentan torch.load(..., weights_only=True) pero recurren a torch.load(..., weights_only=False) ante un pickle.UnpicklingError controlable por el atacante, lo que permite que un archivo de preentrenamiento o modelo .pt malicioso ejecute código pickle arbitrario cuando una canalización de PNL de Stanza lo carga. Este problema está solucionado en la versión 1.12.2."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "stanfordnlp",
          "product": "stanza",
          "versions": [
            {
              "version": "< 1.12.2",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-09T13:13:21.918884Z",
          "id": "CVE-2026-54499",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        },
        {
          "lang": "en",
          "value": "CWE-676"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:stanford:stanza:*:*:*:*:*:python:*:*",
              "versionEndExcluding": "1.12.2",
              "matchCriteriaId": "E88A6152-9471-45B4-9E83-DC16C7FFBB6A"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/stanfordnlp/stanza/commit/b745008c68c9e50ccb5acd537cb6f2453f8b7ad4",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/stanfordnlp/stanza/pull/1587",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking",
        "Patch"
      ]
    },
    {
      "url": "https://github.com/stanfordnlp/stanza/releases/tag/v1.12.2",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/stanfordnlp/stanza/security/advisories/GHSA-v5jw-96jm-7h2c",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/stanfordnlp/stanza/security/advisories/GHSA-v5jw-96jm-7h2c",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    }
  ]
}