PT-2026-65522 · Tinyhttpd · Tiny-Http

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CVE-2026-66752

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Publicado

2026-07-28

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Atualizado

2026-07-28

CVSS v3.1

5.4

Média

VetorAV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
tiny-http through 0.12.0 contains an HTTP request smuggling vulnerability that allows remote attackers to desynchronize request framing by sending a Transfer-Encoding header with any value, including non-chunked codings, which causes the library to unconditionally apply chunk-decoding and discard Content-Length. Attackers can exploit the discrepancy between tiny http's improper Transfer-Encoding parsing and a correctly-implemented front-end proxy to produce two distinct interpretations of a single byte stream, enabling request smuggling, and can additionally send non-chunked bodies with non-chunked Transfer-Encoding values to cause failed body reads that tie up connections and consume worker threads without signaling errors to clients.

Exploit

Correção

HTTP Request/Response Smuggling

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Enumeração de Fraquezas

Identificadores relacionados

CVE-2026-66752

Produtos afetados

Tiny-Http