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.

INFO

Published Date :

2026-03-11T10:09:08.746Z

Last Modified :

2026-03-11T14:26:10.788Z

Source :

curl
AFFECTED PRODUCTS

The following products are affected by CVE-2026-3783 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-3783.

URL Resource
http://www.openwall.com/lists/oss-security/2026/03/11/2 cve-icon
https://curl.se/docs/CVE-2026-3783.html cve-icon cve-icon
https://curl.se/docs/CVE-2026-3783.json cve-icon cve-icon
https://hackerone.com/reports/3583983 cve-icon cve-icon
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