CVE-2025-54430

Estado: AplazadaCrítica (9.1)—

dedupe is a python library that uses machine learning to perform fuzzy matching, deduplication and entity resolution quickly on structured data. Before commit 3f61e79, a critical severity vulnerability has been identified within the .github/workflows/benchmark-bot.yml workflow, where a issue_comment can be triggered using the @benchmark body. This workflow is susceptible to exploitation as it checkout the ${{ github.event.issue.number }}, which correspond to the branch of the PR manipulated by potentially malicious actors, and where untrusted code may be executed.

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Running untrusted code may lead to the exfiltration of GITHUB_TOKEN, which in this workflow has write permissions on most of the scopes - in particular the contents one - and could lead to potential repository takeover. This is fixed by commit 3f61e79.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Puntuación base: 9.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.34%
Percentil entre todas las CVEs puntuadas: 26
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %
Impacto secundarioT1078.004 Cloud Accountsstealth · persistence · privilege escalation · initial access80 %
Impacto secundarioT1552.007 Container APIcredential access85 %

Flujo GitHub Actions con issue_comment expuesto permite ejecutar código no confiable al hacer checkout de rama manipulada (CWE-78). Extrae GITHUB_TOKEN con permisos de escritura, facilitando ejecución remota, robo de secretos y escalada a control de repositorio.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management User Account Management Network Segmentation Limit Access to Resource Over Network Active Directory Configuration Vulnerability Scanning

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Dedupe — Dedupe^AI

CWE

CWE-78

Referencias

JSON original (NVD)

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  "id": "CVE-2025-54430",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-54430",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-30T13:53:46.552876Z"
        }
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 3.9
      }
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        {
          "vendor": "dedupeio",
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          "versions": [
            {
              "status": "affected",
              "version": "< 3f61e79102910bd355e920a2df7e44c14c9cb247"
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  "published": "2025-07-30T14:15:29.257",
  "references": [
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    {
      "lang": "en",
      "value": "dedupe is a python library that uses machine learning to perform fuzzy matching, deduplication and entity resolution quickly on structured data. Before commit 3f61e79, a critical severity vulnerability has been identified within the .github/workflows/benchmark-bot.yml workflow, where a issue_comment can be triggered using the @benchmark body. This workflow is susceptible to exploitation as it checkout the ${{ github.event.issue.number }}, which correspond to the branch of the PR manipulated by potentially malicious actors, and where untrusted code may be executed. Running untrusted code may lead to the exfiltration of GITHUB_TOKEN, which in this workflow has write permissions on most of the scopes - in particular the contents one - and could lead to potential repository takeover. This is fixed by commit 3f61e79."
    },
    {
      "lang": "es",
      "value": "dedupe es una librería de Python que utiliza aprendizaje automático para realizar coincidencias difusas, deduplicación y resolución de entidades rápidamente en datos estructurados. Antes del commit 3f61e79, se identificó una vulnerabilidad crítica en el flujo de trabajo .github/workflows/benchmark-bot.yml, donde se puede activar un issue_comment mediante el cuerpo @benchmark. Este flujo de trabajo es susceptible de explotación, ya que extrae ${{ github.event.issue.number }}, que corresponde a la rama del PR manipulada por actores potencialmente maliciosos, y donde se puede ejecutar código no confiable. La ejecución de código no confiable puede provocar la exfiltración de GITHUB_TOKEN, que en este flujo de trabajo tiene permisos de escritura en la mayoría de los ámbitos, en particular en el de contenido, y podría provocar la toma de control del repositorio. Esto se solucionó con el commit 3f61e79."
    }
  ],
  "lastModified": "2026-06-17T09:40:05.550",
  "sourceIdentifier": "security-advisories@github.com"
}