Skip to content
OpenAdvisories
Medium USN-8378-1 1 CVE

libwww-perl vulnerability

Published Jun 3, 2026 · Updated Jun 3, 2026

Ecosystem: Ubuntu

Summary

It was discovered that libwww-perl incorrectly handled redirects. A remote
attacker could possibly use this issue to obtain sensitive information by
causing Authorization headers to be sent to a different host.

Fixed packages 4

ReleasePackageFixed in
Ubuntu · 22.04 LTS 22.04:LTS libwww-perl 6.61-1ubuntu0.1
Ubuntu · 24.04 LTS 24.04:LTS libwww-perl 6.76-1ubuntu0.1
Ubuntu · 25.10 libwww-perl 6.78-1ubuntu0.1
Ubuntu · 26.04 LTS 26.04:LTS libwww-perl 6.81-1ubuntu0.1

Vulnerabilities 1

  • Medium 6.5
    CVE-2026-8368

    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 …

    OALDERS LWP::UserAgent libwww-perl perl-libwww-perl Debian Ubuntu Azure Linux

References

  • report
    https://ubuntu.com/security/CVE-2026-8368