{"id":"CVE-2026-42037","state":"PUBLISHED","title":"Axios: CRLF Injection in multipart/form-data body via unsanitized blob.type in formDataToStream","description":"Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.15.1, the FormDataPart constructor in lib/helpers/formDataToStream.js interpolates value.type directly into the Content-Type header of each multipart part without sanitizing CRLF (\\r\\n) sequences. An attacker who controls the .type property of a Blob/File-like object (e.g., via a user-uploaded file in a Node.js proxy service) can inject arbitrary MIME part headers into the multipart form-data body. This bypasses Node.js v18+ built-in header protections because the injection targets the multipart body structure, not HTTP request headers. This vulnerability is fixed in 1.15.1.","publishedAt":"2026-04-24T17:58:16.058Z","updatedAt":"2026-04-27T17:37:06.975Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["axios axios"],"affected":[{"vendor":"axios","product":"axios","versions":[{"version":">= 1.0.0, < 1.15.1","status":"affected"}]}],"references":["https://github.com/axios/axios/security/advisories/GHSA-445q-vr5w-6q77"],"weaknesses":["CWE-93"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/42xxx/CVE-2026-42037.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42037","state":"PUBLISHED","datePublished":"2026-04-24T17:58:16.058Z","dateUpdated":"2026-04-27T17:37:06.975Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-23T16:05:01.708Z"},"containers":{"cna":{"title":"Axios: CRLF Injection in multipart/form-data body via unsanitized blob.type in formDataToStream","descriptions":[{"lang":"en","value":"Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.15.1, the FormDataPart constructor in lib/helpers/formDataToStream.js interpolates value.type directly into the Content-Type header of each multipart part without sanitizing CRLF (\\r\\n) sequences. An attacker who controls the .type property of a Blob/File-like object (e.g., via a user-uploaded file in a Node.js proxy service) can inject arbitrary MIME part headers into the multipart form-data body. This bypasses Node.js v18+ built-in header protections because the injection targets the multipart body structure, not HTTP request headers. This vulnerability is fixed in 1.15.1."}],"affected":[{"vendor":"axios","product":"axios","versions":[{"version":">= 1.0.0, < 1.15.1","status":"affected"}]}],"references":[{"url":"https://github.com/axios/axios/security/advisories/GHSA-445q-vr5w-6q77","name":"https://github.com/axios/axios/security/advisories/GHSA-445q-vr5w-6q77","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-93","lang":"en","description":"CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-24T17:58:16.058Z"},"source":{"advisory":"GHSA-445q-vr5w-6q77","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/axios/axios/security/advisories/GHSA-445q-vr5w-6q77","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-27T17:36:52.038565Z","id":"CVE-2026-42037","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-27T17:37:06.975Z"}}]}}}