Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/62853?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/62853?format=api", "purl": "pkg:npm/axios@1.13.5", "type": "npm", "namespace": "", "name": "axios", "version": "1.13.5", "qualifiers": {}, "subpath": "", "is_vulnerable": false, "next_non_vulnerable_version": "1.15.0", "latest_non_vulnerable_version": "1.15.0", "affected_by_vulnerabilities": [], "fixing_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/20921?format=api", "vulnerability_id": "VCID-x41s-g5mh-pkdq", "summary": "Axios is Vulnerable to Denial of Service via __proto__ Key in mergeConfig\n# Denial of Service via **proto** Key in mergeConfig\n\n### Summary\n\nThe `mergeConfig` function in axios crashes with a TypeError when processing configuration objects containing `__proto__` as an own property. An attacker can trigger this by providing a malicious configuration object created via `JSON.parse()`, causing complete denial of service.\n\n### Details\n\nThe vulnerability exists in `lib/core/mergeConfig.js` at lines 98-101:\n\n```javascript\nutils.forEach(Object.keys({ ...config1, ...config2 }), function computeConfigValue(prop) {\n const merge = mergeMap[prop] || mergeDeepProperties;\n const configValue = merge(config1[prop], config2[prop], prop);\n (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);\n});\n```\n\nWhen `prop` is `'__proto__'`:\n\n1. `JSON.parse('{\"__proto__\": {...}}')` creates an object with `__proto__` as an own enumerable property\n2. `Object.keys()` includes `'__proto__'` in the iteration\n3. `mergeMap['__proto__']` performs prototype chain lookup, returning `Object.prototype` (truthy object)\n4. The expression `mergeMap[prop] || mergeDeepProperties` evaluates to `Object.prototype`\n5. `Object.prototype(...)` throws `TypeError: merge is not a function`\n\nThe `mergeConfig` function is called by:\n\n- `Axios._request()` at `lib/core/Axios.js:75`\n- `Axios.getUri()` at `lib/core/Axios.js:201`\n- All HTTP method shortcuts (`get`, `post`, etc.) at `lib/core/Axios.js:211,224`\n\n### PoC\n\n```javascript\nimport axios from \"axios\";\n\nconst maliciousConfig = JSON.parse('{\"__proto__\": {\"x\": 1}}');\nawait axios.get(\"https://httpbin.org/get\", maliciousConfig);\n```\n\n**Reproduction steps:**\n\n1. Clone axios repository or `npm install axios`\n2. Create file `poc.mjs` with the code above\n3. Run: `node poc.mjs`\n4. Observe the TypeError crash\n\n**Verified output (axios 1.13.4):**\n\n```\nTypeError: merge is not a function\n at computeConfigValue (lib/core/mergeConfig.js:100:25)\n at Object.forEach (lib/utils.js:280:10)\n at mergeConfig (lib/core/mergeConfig.js:98:9)\n```\n\n**Control tests performed:**\n| Test | Config | Result |\n|------|--------|--------|\n| Normal config | `{\"timeout\": 5000}` | SUCCESS |\n| Malicious config | `JSON.parse('{\"__proto__\": {\"x\": 1}}')` | **CRASH** |\n| Nested object | `{\"headers\": {\"X-Test\": \"value\"}}` | SUCCESS |\n\n**Attack scenario:**\nAn application that accepts user input, parses it with `JSON.parse()`, and passes it to axios configuration will crash when receiving the payload `{\"__proto__\": {\"x\": 1}}`.\n\n### Impact\n\n**Denial of Service** - Any application using axios that processes user-controlled JSON and passes it to axios configuration methods is vulnerable. The application will crash when processing the malicious payload.\n\nAffected environments:\n\n- Node.js servers using axios for HTTP requests\n- Any backend that passes parsed JSON to axios configuration\n\nThis is NOT prototype pollution - the application crashes before any assignment occurs.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-25639.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-25639.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-25639", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.1578", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.15744", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.1582", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.15889", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.15927", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.1595", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.15802", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.16003", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.1594", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00051", "scoring_system": "epss", "scoring_elements": "0.15888", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00053", "scoring_system": "epss", "scoring_elements": "0.16649", "published_at": "2026-04-18T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-25639" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-25639", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-25639" }, { "reference_url": "https://github.com/axios/axios", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/axios/axios" }, { "reference_url": "https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-10T15:39:46Z/" } ], "url": "https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57" }, { "reference_url": "https://github.com/axios/axios/commit/d7ff1409c68168d3057fc3891f911b2b92616f9e", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-10T15:39:46Z/" } ], "url": "https://github.com/axios/axios/commit/d7ff1409c68168d3057fc3891f911b2b92616f9e" }, { "reference_url": "https://github.com/axios/axios/pull/7369", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-10T15:39:46Z/" } ], "url": "https://github.com/axios/axios/pull/7369" }, { "reference_url": "https://github.com/axios/axios/pull/7388", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-10T15:39:46Z/" } ], "url": "https://github.com/axios/axios/pull/7388" }, { "reference_url": "https://github.com/axios/axios/releases/tag/v0.30.0", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/axios/axios/releases/tag/v0.30.0" }, { "reference_url": "https://github.com/axios/axios/releases/tag/v0.30.3", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-10T15:39:46Z/" } ], "url": "https://github.com/axios/axios/releases/tag/v0.30.3" }, { "reference_url": "https://github.com/axios/axios/releases/tag/v1.13.5", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", 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"reference_url": "https://access.redhat.com/errata/RHSA-2026:8500", "reference_id": "RHSA-2026:8500", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:8500" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2026:8501", "reference_id": "RHSA-2026:8501", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:8501" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2026:9848", "reference_id": "RHSA-2026:9848", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2026:9848" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/62854?format=api", "purl": "pkg:npm/axios@0.30.3", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/axios@0.30.3" }, { "url": "http://public2.vulnerablecode.io/api/packages/631910?format=api", "purl": "pkg:npm/axios@1.0.0-alpha.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/axios@1.0.0-alpha.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/62853?format=api", "purl": "pkg:npm/axios@1.13.5", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/axios@1.13.5" } ], "aliases": [ "CVE-2026-25639", "GHSA-43fc-jf86-j433" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-x41s-g5mh-pkdq" } ], "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/axios@1.13.5" }