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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-67182

Rouille 0.3.3 - 3.6.2 HTTP Request Smuggling via proxy Header Injection

Description

Rouille 0.3.3 through 3.6.2 contains an HTTP request smuggling vulnerability that allows remote attackers to bypass access controls by injecting bare line feed characters (0x0A) into client-supplied request header values that are copied verbatim to upstream connections without validation. Attackers can craft a header value containing a complete additional HTTP request that is interpreted as a separate request by backends such as Go net/http and Python http.server, causing the backend to process a smuggled request with attacker-chosen method, path, and headers that bypasses the rouille handler's access control logic.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

tomaka rouille

Default version status: affected

  • 0.3.3 to ≤ 3.6.2affected
pkg:github/tomaka/rouille

References