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.
https://hackerone.com/reports/3677759
https://curl.se/docs/CVE-2026-6429.json
https://curl.se/docs/CVE-2026-6429.html
Source: Mitre, NVD
Published: 2026-05-13
Updated: 2026-05-14
Base Score: 5.4
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:N/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.00017