CVE-2026-3783
Estado: ModificadaMedia (5.3)—
When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances.
If the hostname that the first request is redirected to has information in the used .netrc file, with either of the `machine` or `default` keywords, curl would pass on the bearer token set for the first host also to the second one.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Puntuación base: 5.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.51%
- Percentil entre todas las CVEs puntuadas: 41
- 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).
Tecnologías afectadas (1)
CWE
- CWE-522
- CWE-522
Referencias
JSON original (NVD)
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"published": "2026-03-11T11:16:00.080",
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"value": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a redirect to a second URL, curl could leak that token to the second\nhostname under some circumstances.\n\nIf the hostname that the first request is redirected to has information in the\nused .netrc file, with either of the `machine` or `default` keywords, curl\nwould pass on the bearer token set for the first host also to the second one."
},
{
"lang": "es",
"value": "Cuando se utiliza un token portador OAuth2 para una transferencia HTTP(S), y esa transferencia realiza una redirección a una segunda URL, curl podría filtrar ese token al segundo nombre de host bajo algunas circunstancias.\n\nSi el nombre de host al que se redirige la primera solicitud tiene información en el archivo .netrc utilizado, con cualquiera de las palabras clave 'machine' o 'default', curl pasaría el token portador establecido para el primer host también al segundo."
}
],
"lastModified": "2026-09-15T07:16:27.720",
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