CVE-2026-3783

MEDIUM

5.3

Description

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/11/2026

Derniere modification3/12/2026

Sourcenvd

Observations honeypot0

Produits affectes

haxx:curl

Faiblesses (CWE)

CWE-522

References

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)

Correlations IOC

Aucune correlation enregistree

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