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Medium ALAS2023-2026-1764 1 CVE

Moderate: perl-libwww-perl security update (Amazon Linux 2023)

Published May 25, 2026 · Updated May 25, 2026

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-8368: 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.

Fixed packages 2

ReleasePackageFixed in
Amazon Linux · 2023 perl-libwww-perl 0:6.58-1.amzn2023.0.3
Amazon Linux · 2023 perl-libwww-perl-tests 0:6.58-1.amzn2023.0.3

Vulnerabilities 1

  • Medium 6.5

    LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects

    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 …

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-8368.html