CVE intelligence

CVE-2026-8926

Vulnerability intelligence

Published Jul 3, 2026Sources checked Oct 28, 2026

9.1CRITICALCVSS out of 10

What this means

Review the available evidence

CVE-2026-8926 and is rated Critical severity with a CVSS score of 9.1. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Ubuntu Security Notices guidance

Vendor revision: Sep 28, 2026

USN-8487-1 fixed vulnerabilities in curl.

Microsoft Security Response Center guidance

Vendor revision: Jul 12, 2026

CBL-Mariner Releases

Vendor-listed releases

8.11.1-10

CISA KEVNot listedBased on the latest collected catalog

EPSS0.4%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is 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.

Source: NVD