CVE-2019-18978

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Source
https://cve.org/CVERecord?id=CVE-2019-18978
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18978.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-18978
Aliases
Downstream
Published
2019-11-14T21:15:12.170Z
Modified
2026-07-08T05:54:58.136733321Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem before 1.0.4 for Ruby. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "16.04"
                },
                {
                    "last_affected": "16.04"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "canonical:ubuntu_linux",
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*"
            ]
        },
        {
            "extracted_events": [
                {
                    "introduced": "8.0"
                },
                {
                    "last_affected": "8.0"
                },
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                },
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "debian:debian_linux",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/cyu/rack-cors

Affected ranges

Type
GIT
Repo
https://github.com/cyu/rack-cors
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e4d4fc362a4315808927011cbe5afcfe5486f17d
Database specific 
{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:rack-cors_project:rack-cors:*:*:*:*:*:ruby:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.0.4"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.2.0
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.2.6
v0.2.7
v0.2.8
v0.2.9
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18978.json"