CVE-2026-8926

UNKNOWN 0.0

password leak with netrc and user in URL

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	curl
Product	curl
Published	Jul 3, 2026

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Affected Versions

curl / curl

8.20.0 ≤ 8.20.0 8.19.0 ≤ 8.19.0 8.18.0 ≤ 8.18.0 8.17.0 ≤ 8.17.0 8.16.0 ≤ 8.16.0 8.15.0 ≤ 8.15.0 8.14.1 ≤ 8.14.1 8.14.0 ≤ 8.14.0 8.13.0 ≤ 8.13.0 8.12.1 ≤ 8.12.1 8.12.0 ≤ 8.12.0 8.11.1 ≤ 8.11.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Joshua Rogers (Aisle Research) Stefan Eissing