CVE-2026-61666

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.2, WebSocket::Driver.server() passes a malformed Host header to URI.parse in lib/websocket/http/request.rb without catching URI::InvalidURIError, allowing a remote client to crash a TCP-backed WebSocket server when the application does not catch the error from parse(). This issue is fixed in version 0.8.2.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-248"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61666.json"
}

References

Affected packages

Git / github.com/faye/websocket-driver-ruby

Affected ranges

Type

GIT

Repo

https://github.com/faye/websocket-driver-ruby

Events

Introduced

Fixed

49e230b252817632c1ab14a8c501fa460d5fa9bf

Fixed

7d6fd87759a2fdc83590d3b49ffa661dc53fa128

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.8.2"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "7d6fd87759a2fdc83590d3b49ffa661dc53fa128"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

0.*

0.0.0

0.1.0

0.2.0

0.2.1

0.2.2

0.2.3

0.3.0

0.3.1

0.3.2

0.3.3

0.3.4

0.3.5

0.4.0

0.5.0

0.5.1

0.5.2

0.5.3

0.5.4

0.6.0

0.6.1

0.6.2

0.6.3

0.6.4

0.6.5

0.7.0

0.7.1

0.7.2

0.7.3

0.7.4

0.7.5

0.7.6

0.7.7

0.8.0

0.8.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61666.json"