CVE-2026-67182 (GCVE-0-2026-67182)
Vulnerability from cvelistv5 – Published: 2026-07-28 16:18 – Updated: 2026-07-28 17:10 X_Open Source
VLAI
EPSS
VEX
Title
Rouille 0.3.3 - 3.6.2 HTTP Request Smuggling via proxy Header Injection
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 17:08 UTC
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/theopaid/HTTP-Request-Smugglin… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/rouille-http… | third-party-advisory |
Impacted products
Date Public
2026-07-26 00:00
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