Intel

AIKIDO-2026-749188

libcurl is vulnerable to Information Disclosure

Information DisclosureCVE-2026-8926 Published 6 days ago

37

Low Risk

This Affects:

C++libcurl
8.11.1 - 8.20.0
Fixed in 8.21.0
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TL;DR

With a .netrc file and a URL that sets a username but no password, curl can take the password of a different user for that host from .netrc when the named user has no entry. The transfer then authenticates as the requested user with the other user's password. The fix uses a .netrc password only for the user named in the URL.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range and you combine .netrc with a URL that contains a username and no password.

Background info

libcurl is vulnerable to Information Disclosure in versions 8.11.1 - 8.20.0.

How to fix this

Upgrade the libcurl and/or the curl.curl library to the patch version.

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