CVE-2026-8926

When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL with a username (without a password), like `https://user@example.com/`, curl could wrongly get and use the password for *another* user set in the `.netrc` file for that host if such a one exists and there is no match for the specified user.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://curl.se/docs/CVE-2026-8926.html	Patch Vendor Advisory
https://curl.se/docs/CVE-2026-8926.json	Vendor Advisory
https://hackerone.com/reports/3735184	Exploit Issue Tracking Third Party Advisory
https://hackerone.com/reports/3735184	Exploit Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-03 07:16

Updated : 2026-09-15 07:16

NVD link : CVE-2026-8926

Mitre link : CVE-2026-8926

CVE.ORG link : CVE-2026-8926

JSON object : View

Products Affected

haxx

curl

CWE

CWE-522

Insufficiently Protected Credentials

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