{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.31.1"
              },
              {
                "introduced": "1.0.0"
              },
              {
                "fixed": "1.15.1"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a589dc525af12e0fabef7d6e5be028ad433eee31"
            },
            {
              "introduced": "484aa4fe6addccbd32206a31eb3d2d000843066e"
            },
            {
              "fixed": "ac42446be51300fe214ba3c6e40cc95f34fd6871"
            }
          ],
          "repo": "https://github.com/axios/axios",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-m7pr-hjqh-92cm"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42038.json"
  },
  "details": "Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, he fix for no_proxy hostname normalization bypass is incomplete. When no_proxy=localhost is set, requests to 127.0.0.1 and [::1] still route through the proxy instead of bypassing it. The shouldBypassProxy() function does pure string matching — it does not resolve IP aliases or loopback equivalents. This vulnerability is fixed in 1.15.1 and 0.31.1.",
  "id": "CVE-2026-42038",
  "modified": "2026-07-15T01:48:56.355092578Z",
  "published": "2026-04-24T17:57:26.975Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42038.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/axios/axios/security/advisories/GHSA-m7pr-hjqh-92cm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42038"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Axios: no_proxy bypass via IP alias allows SSRF"
}