{"id":"CVE-2026-42038","summary":"Axios: no_proxy bypass via IP alias allows SSRF","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.","aliases":["GHSA-m7pr-hjqh-92cm"],"modified":"2026-05-18T06:00:10.208964102Z","published":"2026-04-24T17:57:26.975Z","related":["CGA-h762-4647-6vc9"],"database_specific":{"cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42038.json","cna_assigner":"GitHub_M"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/axios/axios","events":[{"introduced":"484aa4fe6addccbd32206a31eb3d2d000843066e"},{"fixed":"a589dc525af12e0fabef7d6e5be028ad433eee31"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-42038.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N"}]}