Vulnerability DatabaseCVE-2026-6429
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CVE-2026-6429
Published:May 13, 2026
Updated:May 16, 2026
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 Packages
https://github.com/curl/curl.git (GITHUB):
Affected version(s) >=curl-7_14_0 <curl-8_20_0
Fix Suggestion:
Update to version curl-8_20_0
Related Resources (4)
https://curl.se/docs/CVE-2026-6429.json
https://hackerone.com/reports/3677759
https://curl.se/docs/CVE-2026-6429.html
https://seclists.org/oss-sec/2026/q2/268
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
EPSS
Base Score:
0.03