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HTTP::Tiny for Perl before version 0.095 forwards explicitly caller-supplied credential headers when following HTTP 3xx redirects to a different origin. Its redirect handling follows the Location target, while subsequent request preparation re-merges caller-provided headers without confirming that the scheme, host, and port match the original request. Authorization, Cookie, and Proxy-Authorization headers can therefore be transmitted to a cross-origin redirect target. The behavior also permits HTTPS-to-HTTP redirects, exposing forwarded credentials in plaintext in transit. The documented exclusion of Authorization headers from redirects applied only to Basic authentication supplied through URL userinfo, not to explicitly supplied request headers.
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No public exploit code observed for this vulnerability.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An HTTP redirect credential-forwarding vulnerability that can disclose Authorization credentials to a redirect destination controlled by another party.
A network-reachable vulnerability affecting Huawei EulerOS 2.0 packages perl-http-tiny-help and perl-http-tiny. It requires user interaction and can result in high confidentiality and low integrity impact according to the provided CVSS v3 vector.
A network-accessible vulnerability, requiring user interaction, addressed in Huawei EulerOS_SA-2026-3369 for EulerOS 2.0 Perl HTTP::Tiny packages. Its listed CVSS v3 vector is AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N; no technical flaw description is provided.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.