GET

Vulnerability Instance

Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/31478?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/31478?format=api",
    "vulnerability_id": "VCID-7mnt-kvuh-cfba",
    "summary": "Multiple vulnerabilities have been discovered in Rust, the worst of which could result in denial of service.",
    "aliases": [
        {
            "alias": "CVE-2021-42694"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/71877?format=api",
            "purl": "pkg:ebuild/dev-lang/rust@1.63.0-r1",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:ebuild/dev-lang/rust@1.63.0-r1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/71878?format=api",
            "purl": "pkg:ebuild/dev-lang/rust-bin@1.63.0-r1",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:ebuild/dev-lang/rust-bin@1.63.0-r1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/71879?format=api",
            "purl": "pkg:ebuild/dev-lang/rust-bin@1.64.0",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:ebuild/dev-lang/rust-bin@1.64.0"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/373352?format=api",
            "purl": "pkg:alpm/archlinux/rust@1:1.56.0-3",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-69zd-gcvx-fuhr"
                },
                {
                    "vulnerability": "VCID-7mnt-kvuh-cfba"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/rust@1:1.56.0-3"
        }
    ],
    "references": [
        {
            "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-42694.json",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                }
            ],
            "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-42694.json"
        },
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-42694",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.05247",
                    "scoring_system": "epss",
                    "scoring_elements": "0.89939",
                    "published_at": "2026-04-01T12:55:00Z"
                },
                {
                    "value": "0.07635",
                    "scoring_system": "epss",
                    "scoring_elements": "0.91893",
                    "published_at": "2026-04-18T12:55:00Z"
                },
                {
                    "value": "0.07635",
                    "scoring_system": "epss",
                    "scoring_elements": "0.91896",
                    "published_at": "2026-04-16T12:55:00Z"
                },
                {
                    "value": "0.07635",
                    "scoring_system": "epss",
                    "scoring_elements": "0.91881",
                    "published_at": "2026-04-12T12:55:00Z"
                },
                {
                    "value": "0.07635",
                    "scoring_system": "epss",
                    "scoring_elements": "0.91877",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.07635",
                    "scoring_system": "epss",
                    "scoring_elements": "0.91872",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.07635",
                    "scoring_system": "epss",
                    "scoring_elements": "0.91851",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.07635",
                    "scoring_system": "epss",
                    "scoring_elements": "0.91859",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.07635",
                    "scoring_system": "epss",
                    "scoring_elements": "0.91845",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.08235",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92236",
                    "published_at": "2026-04-29T12:55:00Z"
                },
                {
                    "value": "0.0844",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92361",
                    "published_at": "2026-04-24T12:55:00Z"
                },
                {
                    "value": "0.0844",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92362",
                    "published_at": "2026-04-26T12:55:00Z"
                },
                {
                    "value": "0.0844",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92356",
                    "published_at": "2026-04-21T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-42694"
        },
        {
            "reference_url": "http://www.openwall.com/lists/oss-security/2021/11/01/1",
            "reference_id": "1",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/11/01/1"
        },
        {
            "reference_url": "https://cwe.mitre.org/data/definitions/1007.html",
            "reference_id": "1007.html",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "https://cwe.mitre.org/data/definitions/1007.html"
        },
        {
            "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2015365",
            "reference_id": "2015365",
            "reference_type": "",
            "scores": [],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2015365"
        },
        {
            "reference_url": "http://www.openwall.com/lists/oss-security/2021/11/01/6",
            "reference_id": "6",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/11/01/6"
        },
        {
            "reference_url": "https://www.kb.cert.org/vuls/id/999008",
            "reference_id": "999008",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "https://www.kb.cert.org/vuls/id/999008"
        },
        {
            "reference_url": "https://security.archlinux.org/AVG-2507",
            "reference_id": "AVG-2507",
            "reference_type": "",
            "scores": [
                {
                    "value": "Medium",
                    "scoring_system": "archlinux",
                    "scoring_elements": ""
                }
            ],
            "url": "https://security.archlinux.org/AVG-2507"
        },
        {
            "reference_url": "https://security.gentoo.org/glsa/202210-09",
            "reference_id": "GLSA-202210-09",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "https://security.gentoo.org/glsa/202210-09"
        },
        {
            "reference_url": "https://www.unicode.org/reports/tr36/",
            "reference_id": "tr36",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "https://www.unicode.org/reports/tr36/"
        },
        {
            "reference_url": "https://www.unicode.org/reports/tr39/",
            "reference_id": "tr39",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "https://www.unicode.org/reports/tr39/"
        },
        {
            "reference_url": "https://www.scyon.nl/post/trojans-in-your-source-code",
            "reference_id": "trojans-in-your-source-code",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "https://www.scyon.nl/post/trojans-in-your-source-code"
        },
        {
            "reference_url": "https://trojansource.codes",
            "reference_id": "trojansource.codes",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "https://trojansource.codes"
        },
        {
            "reference_url": "http://www.unicode.org/versions/Unicode14.0.0/",
            "reference_id": "Unicode14.0.0",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2024-07-18T17:31:01Z/"
                }
            ],
            "url": "http://www.unicode.org/versions/Unicode14.0.0/"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 838,
            "name": "Inappropriate Encoding for Output Context",
            "description": "The product uses or specifies an encoding when generating output to a downstream component, but the specified encoding is not the same as the encoding that is expected by the downstream component."
        }
    ],
    "exploits": [],
    "severity_range_score": "4.0 - 8.3",
    "exploitability": "0.5",
    "weighted_severity": "7.5",
    "risk_score": 3.8,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-7mnt-kvuh-cfba"
}