{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:*",
            "extracted_events": [
              {
                "introduced": "1.0.0"
              },
              {
                "fixed": "1.15.2"
              },
              {
                "fixed": "1.15.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "484aa4fe6addccbd32206a31eb3d2d000843066e"
            },
            {
              "fixed": "582934382e4e0e0bcb679c628071a4203e93cf57"
            }
          ],
          "repo": "https://github.com/axios/axios",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3w6x-2g7m-8v23"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1321",
      "CWE-915"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42044.json"
  },
  "details": "Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.15.2, he Axios library is vulnerable to a Prototype Pollution \"Gadget\" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into surgical, invisible modification of all JSON API responses — including privilege escalation, balance manipulation, and authorization bypass. The default transformResponse function at lib/defaults/index.js:124 calls JSON.parse(data, this.parseReviver), where this is the merged config object. Because parseReviver is not present in Axios defaults, not validated by assertOptions, and not subject to any constraints, a polluted Object.prototype.parseReviver function is called for every key-value pair in every JSON response, allowing the attacker to selectively modify individual values while leaving the rest of the response intact. This vulnerability is fixed in 1.15.2.",
  "id": "CVE-2026-42044",
  "modified": "2026-07-12T03:55:25.375991119Z",
  "published": "2026-04-24T17:49:49.517Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42044.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:16532"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:16534"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:16535"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:16542"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:17657"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:17699"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:19109"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:19375"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:20338"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:20454"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:20889"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:20938"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:21017"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:21338"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:21772"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:22465"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:22629"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:22840"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:23361"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:24471"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:24473"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:24536"
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    {
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      "url": "https://access.redhat.com/errata/RHSA-2026:24539"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:24853"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:25041"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:25089"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:25271"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:25273"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:26214"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:26225"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:26232"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:26234"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:33574"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:34608"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36107"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:36882"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-42044"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42044.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/axios/axios/security/advisories/GHSA-3w6x-2g7m-8v23"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42044"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461624"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Axios: Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver`"
}