CVE-2026-44590
Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions workflow validate_modified_targets.yml is vulnerable to command injection via the pull_request_target trigger. Any GitHub user can execute arbitrary commands on the CI runner and exfiltrate the GITHUB_TOKEN by opening a pull request. No approval, review, or merge is required. This vulnerability is fixed in 0.16.1.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
- Puntuación base: 9.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.29%
- Percentil entre todas las CVEs puntuadas: 69
- 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.
- Explotación
T1190Exploit Public-Facing Applicationinitial access92 % - Impacto principal
T1059Command and Scripting Interpreterexecution95 % - Impacto secundario
T1552.007Container APIcredential access88 %
CWE-78 (command injection) + AV:N/PR:N/UI:N confirma T1190. Inyección de comandos en CI/CD permite ejecución arbitraria (T1059) y exfiltración del GITHUB_TOKEN (T1552.007).
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
Tecnologías afectadas (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-78
Referencias
JSON original (NVD)
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{
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"metrics": {
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{
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"role": "CISA Coordinator",
"options": [
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},
{
"automatable": "yes"
},
{
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],
"version": "2.0.3",
"timestamp": "2026-05-28T13:27:58.922623Z"
}
}
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"integrityImpact": "HIGH",
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"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
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}
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"affectedData": [
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"versions": [
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"published": "2026-05-27T20:16:37.293",
"references": [
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{
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"value": "Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions workflow validate_modified_targets.yml is vulnerable to command injection via the pull_request_target trigger. Any GitHub user can execute arbitrary commands on the CI runner and exfiltrate the GITHUB_TOKEN by opening a pull request. No approval, review, or merge is required. This vulnerability is fixed in 0.16.1."
}
],
"lastModified": "2026-06-17T10:50:53.513",
"sourceIdentifier": "security-advisories@github.com"
}