CVE-2026-8368
Published
CVSS v3
6.5
MEDIUM
CVSS v2
N/A
Affected
1
PROJECT
Description
LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects. On a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are sent unchanged to the redirect target, including across scheme, host, or port changes. A redirect to an attacker controlled host therefore discloses the caller's credentials to that host.
The libwww-perl collection is a set of Perl modules that provides a simple, consistent application programming interface to the World-Wide Web. The main focus of the library is providing classes and functions allowing to write WWW clients. It also contains modules that are of more general use and even classes to help implement simple HTTP servers.
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