CVE-2026-6429
5.3
MEDIUM
CVSS 3.1
EPSS 0.02%
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.
How to fix CVE-2026-6429
To remediate CVE-2026-6429, upgrade the affected package to a fixed version below.
- Alpine/curl—upgrade to 8.20.0-r0 or later
- Debian/curl—no fix listed
Is CVE-2026-6429 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 8.20.0-r0
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |