Description
When asked to both use a `.netrc` file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances.
Affected products
haxx: curl
References3
- curl.se/docs/CVE-2026-6429.html PatchVendor Advisory
- hackerone.com/reports/3677759 ExploitIssue TrackingThird Party Advisory
- curl.se/docs/CVE-2026-6429.json Product
Metrics
- CVSS 3.1
-
5.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 1% percentile: 45 · as of 14 November 2026
- CWE
- CWE-200
Could this be exploited in your environment?
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