{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-67314", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-07-29T13:06:35.179Z", "datePublished": "2026-08-01T12:22:16.603Z", "dateUpdated": "2026-08-01T12:22:16.603Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-01T12:22:16.603Z"}, "datePublic": "2026-07-06T00:00:00.000Z", "title": "axios before 1.18.0 Prototype Pollution via auth subfields", "descriptions": [{"lang": "en", "value": "axios versions >=1.15.2 and <1.18.0 contain prototype-pollution read-side gadgets in Basic auth subfield handling (lib/adapters/http.js and lib/helpers/resolveConfig.js). When an application is already affected by a separate prototype-pollution primitive and makes an axios request with an own auth object that omits the username and/or password properties, axios reads the inherited Object.prototype.username and Object.prototype.password values and uses them to construct an outbound 'Authorization: Basic ...' header. axios itself does not pollute prototypes. The practical impact is outbound request tampering: an attacker who controls the polluted prototype values can inject attacker-chosen Basic auth credentials or replace an existing Authorization header. Credential disclosure is only possible under additional application-specific conditions."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "cweId": "CWE-1321", "type": "CWE"}]}], "affected": [{"vendor": "axios", "product": "axios", "defaultStatus": "unaffected", "packageURL": "pkg:npm/axios", "versions": [{"version": "1.15.2", "status": "affected", "versionType": "semver", "lessThan": "1.18.0"}, {"version": "1.18.0", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:*", "versionStartIncluding": "1.15.2", "versionEndExcluding": "1.18.0"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/axios/axios/security/advisories/GHSA-xj6q-8x83-jv6g", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-xj6q-8x83-jv6g)"}, {"name": "VulnCheck Advisory: axios before 1.18.0 Prototype Pollution via auth subfields", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/axios-before-prototype-pollution-via-auth-subfields"}], "credits": [{"lang": "en", "value": "lullu57", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.15.2,1.18.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "1.18.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "axios", "source": "cna", "vendor": "axios"}, "product": "axios", "vendor": "axios"}], "created": "2026-08-01T13:45:02.896060+00:00", "updated": "2026-08-01T13:45:02.896078+00:00", "vendors": ["axios", "axios$PRODUCT$axios"]}