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
| Release | Package | Fixed 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
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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
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-8368.html