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.
Metrics
Affected Vendors & Products
References
History
Wed, 13 May 2026 15:15:00 +0000
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Wed, 13 May 2026 11:00:00 +0000
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Oalders
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Oalders lwp::useragent |
Tue, 12 May 2026 18:30:00 +0000
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Tue, 12 May 2026 15:00:00 +0000
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| 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. | |
| Title | LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects | |
| Weaknesses | CWE-522 | |
| References |
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Status: PUBLISHED
Assigner: CPANSec
Published: 2026-05-12T14:01:25.365Z
Updated: 2026-05-13T14:31:54.021Z
Reserved: 2026-05-11T21:33:14.480Z
Link: CVE-2026-8368
Updated: 2026-05-12T17:41:03.656Z
Status : Deferred
Published: 2026-05-12T15:16:19.690
Modified: 2026-05-12T18:17:33.157
Link: CVE-2026-8368
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