GET

Vulnerability Instance

Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/354607?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/354607?format=api",
    "vulnerability_id": "VCID-tdwz-gg36-mkgs",
    "summary": "Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, the encode() function in lib/helpers/AxiosURLSearchParams.js contains a character mapping (charMap) at line 21 that reverses the safe percent-encoding of null bytes. After encodeURIComponent('\\x00') correctly produces the safe sequence %00, the charMap entry '%00': '\\x00' converts it back to a raw null byte. Primary impact is limited because the standard axios request flow is not affected. This vulnerability is fixed in 1.15.1 and 0.31.1.",
    "aliases": [
        {
            "alias": "CVE-2026-42040"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/1077457?format=api",
            "purl": "pkg:deb/debian/node-axios@1.15.2-1?distro=trixie",
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/1077788?format=api",
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            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/node-axios@1.15.2-1"
        }
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        },
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    ],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-42040",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00029",
                    "scoring_system": "epss",
                    "scoring_elements": "0.08178",
                    "published_at": "2026-04-26T12:55:00Z"
                },
                {
                    "value": "0.00033",
                    "scoring_system": "epss",
                    "scoring_elements": "0.09718",
                    "published_at": "2026-04-29T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-42040"
        },
        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-42040",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-42040"
        },
        {
            "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1134878",
            "reference_id": "1134878",
            "reference_type": "",
            "scores": [],
            "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1134878"
        },
        {
            "reference_url": "https://github.com/axios/axios/security/advisories/GHSA-xhjh-pmcv-23jw",
            "reference_id": "GHSA-xhjh-pmcv-23jw",
            "reference_type": "",
            "scores": [
                {
                    "value": "3.7",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-27T13:48:02Z/"
                }
            ],
            "url": "https://github.com/axios/axios/security/advisories/GHSA-xhjh-pmcv-23jw"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 116,
            "name": "Improper Encoding or Escaping of Output",
            "description": "The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved."
        },
        {
            "cwe_id": 626,
            "name": "Null Byte Interaction Error (Poison Null Byte)",
            "description": "The product does not properly handle null bytes or NUL characters when passing data between different representations or components."
        }
    ],
    "exploits": [],
    "severity_range_score": "3.7 - 3.7",
    "exploitability": "0.5",
    "weighted_severity": "3.3",
    "risk_score": 1.6,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-tdwz-gg36-mkgs"
}