CVE-2026-67182
NVD: 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... NVD: 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... OSV: Rouille 0.3.3 - 3.6.2 HTTP Request Smuggling via proxy Header Injection
6.9 Severity
MEDIUM EPSS
0.0042 (34) KEV
-
Source-published summary
NVD: 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... NVD: 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... OSV: Rouille 0.3.3 - 3.6.2 HTTP Request Smuggling via proxy Header Injection
Possible impact
Source describes remote exposure. Possible impact: This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for remote exposure.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Remediation reference present; patch status requires confirmation in the linked advisory.
Why it matters
Source describes remote exposure. Possible impact: This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for remote exposure.; CVSS 6.9 (MEDIUM); EPSS percentile 34; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD, OSV.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
remote exposure
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD / OSV description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.