{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48861", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-05-25T20:44:10.697Z", "datePublished": "2026-06-02T14:15:09.015Z", "dateUpdated": "2026-06-02T19:14:00.466Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Mint.HTTP1.Request'"], "packageName": "mint", "packageURL": "pkg:hex/mint", "product": "mint", "programFiles": ["lib/mint/http1/request.ex"], "programRoutines": [{"name": "'Elixir.Mint.HTTP1.Request':encode_request_line/2"}], "repo": "https://github.com/elixir-mint/mint", "vendor": "elixir-mint", "versions": [{"lessThan": "1.9.0", "status": "affected", "version": "0.1.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Mint.HTTP1.Request'"], "packageName": "elixir-mint/mint", "packageURL": "pkg:github/elixir-mint/mint", "product": "mint", "programFiles": ["lib/mint/http1/request.ex"], "programRoutines": [{"name": "'Elixir.Mint.HTTP1.Request':encode_request_line/2"}], "repo": "https://github.com/elixir-mint/mint.git", "vendor": "elixir-mint", "versions": [{"lessThan": "fad091454cbb7449b19edb8e1fee12ca7cf28c3a", "status": "affected", "version": "8db1acff30b6a9433762c18b1e1f891b8c1f74f7", "versionType": "git"}]}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.9.0", "versionStartIncluding": "0.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "finder", "value": "Peter Ullrich"}, {"lang": "en", "type": "remediation developer", "value": "Eric Meadows-J\u00f6nsson"}, {"lang": "en", "type": "analyst", "value": "Jonatan M\u00e4nnchen / EEF"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability in elixir-mint Mint allows HTTP Request Splitting and HTTP Request Smuggling.<p>In <tt>lib/mint/http1/request.ex</tt>, the <tt>encode_request_line/2</tt> function splices the caller-supplied <tt>method</tt> and <tt>target</tt> arguments directly into the HTTP/1 request line without any character validation: <tt>[method, ?\\s, target, \" HTTP/1.1\\r\\n\"]</tt>. 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