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CVE-2026-81691

Estado: AnalizadaAlta (8.7)—

openssl_encrypt versions before 1.4.9 fail to validate server URLs in login and register_with_email functions, accepting unencrypted http:// URLs and unconfigured hosts. Attackers on the network path can intercept cleartext credentials including client_id, passwords, and JWTs to achieve full keyserver account takeover.

CVSS

Probabilidad de explotación (EPSS)

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.

CWE-319 (cleartext transmission) permite interceptar credenciales en red sin encriptación; AV:N sin validación de URL HTTPS. Atacante en el medio captura client_id, contraseñas y JWTs para takeover de cuenta.

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

Application Developer GuidanceUser TrainingUser Account ManagementPrivileged Account ManagementPassword PoliciesMulti-factor Authentication

Tecnologías afectadas (1)

Jahlives — Openssl Encrypt

CWE

Referencias

JSON original (NVD)

Mostrar
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      "url": "https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-xr64-hcxg-4ghr",
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    },
    {
      "url": "https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-credential-leakage-via-unvalidated-server-urls",
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  ],
  "lastModified": "2026-09-02T13:10:07.170",
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