CVE-2026-3783

MEDIUM

5.3

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.15.3

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/11/2026

Ultima modificacion3/12/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

haxx:curl

Debilidades (CWE)

CWE-522

Referencias

https://curl.se/docs/CVE-2026-3783.html(2499f714-1537-4658-8207-48ae4bb9eae9)

https://curl.se/docs/CVE-2026-3783.json(2499f714-1537-4658-8207-48ae4bb9eae9)

https://hackerone.com/reports/3583983(2499f714-1537-4658-8207-48ae4bb9eae9)

http://www.openwall.com/lists/oss-security/2026/03/11/2(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

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