CVE-2026-3783

MEDIUM

5.3

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung5.3

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/11/2026

Zuletzt geandert3/12/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

haxx:curl

Schwachen (CWE)

CWE-522

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

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