CVE-2026-6429

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

13/05/2026

Last modified:

13/05/2026

Description

When asked to both use a `.netrc` file for credentials and to follow HTTP<br /> redirects, libcurl could leak the password used for the first host to the<br /> followed-to host under certain circumstances.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

5.30

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://curl.se/docs/CVE-2026-6429.html
https://curl.se/docs/CVE-2026-6429.json
https://hackerone.com/reports/3677759