Description
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.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| curl | curl | >= 8.11.1, < 8.14.2; >= 8.15.0, < 8.16.1; >= 8.17.0, < 8.20.1 |
| curl | curl | >= e9b9bbac22c26cf67316fa8e6c6b9e831af31949, < 4ae1d7cc2643e4773a136395f12bc02fc6867854 |
| curl | curl | 8.20.0; 8.19.0; 8.18.0; 8.17.0; 8.16.0; 8.15.0; 8.14.1; 8.14.0; 8.13.0; 8.12.1; 8.12.0; 8.11.1 |
References
- https://curl.se/docs/CVE-2026-8926.htmlPatch, Vendor Advisory
- https://curl.se/docs/CVE-2026-8926.jsonVendor Advisory
- https://hackerone.com/reports/3735184Exploit, Issue Tracking, Third Party Advisory
- https://hackerone.com/reports/3735184Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Jul 3, 2026
- Last modified
- Sep 15, 2026
- NVD status
- Modified