CVE-2026-8926

critical · 9.1

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.

9.1

CVSS

0.4%

EPSS (exploit prob.)

38th

EPSS percentile

2026-07-03

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-522

Affected products

Vendor	Product	Affected versions
haxx	curl	>= 8.11.1, < 8.21.0

Check a specific version with /api/v1/cve/match.

References

https://curl.se/docs/CVE-2026-8926.html
https://curl.se/docs/CVE-2026-8926.json
https://hackerone.com/reports/3735184
https://hackerone.com/reports/3735184

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-8926