CVE-2026-67182

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Source
https://cve.org/CVERecord?id=CVE-2026-67182
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67182.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-67182
Downstream
Related
Published
2026-07-28T16:18:08.550Z
Modified
2026-08-16T11:56:59.052692201Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N CVSS Calculator
Summary
Rouille 0.3.3 - 3.6.2 HTTP Request Smuggling via proxy Header Injection
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67182.json",
    "cwe_ids": [
        "CWE-444"
    ]
}
References

Affected packages

Git / github.com/tomaka/rouille

Affected ranges

Type
GIT
Repo
https://github.com/tomaka/rouille
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
536fa0eacaeef93168f3378a0296e3f99da7b3af
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.3.3"
        },
        {
            "last_affected": "3.6.2"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v3.*
v3.1.0
v3.1.1
v3.2.0
v3.2.1
v3.3.0
v3.3.1
v3.4.0
v3.5.0
v3.6.0
v3.6.1
v3.6.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67182.json"