Vulnerability 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://[email protected]/`, 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 Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Curl | >= 8.11.1, < 8.21.0 |
Related Weaknesses (CWE)
References
- https://curl.se/docs/CVE-2026-8926.htmlPatchVendor Advisory
- https://curl.se/docs/CVE-2026-8926.jsonVendor Advisory
- https://hackerone.com/reports/3735184ExploitIssue TrackingThird Party Advisory
- https://hackerone.com/reports/3735184ExploitIssue TrackingThird Party Advisory
FAQ
What is CVE-2026-8926?
CVE-2026-8926 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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://[email protected]/`, curl could wrongly get and use ...
How severe is CVE-2026-8926?
CVE-2026-8926 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-8926?
Check the references section above for vendor advisories and patch information. Affected products include: Haxx Curl.