{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-49753", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-06-01T13:45:22.448Z", "datePublished": "2026-06-02T14:15:17.078Z", "dateUpdated": "2026-06-02T19:14:42.817Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Mint.HTTP1.Parse'"], "packageName": "mint", "packageURL": "pkg:hex/mint", "product": "mint", "programFiles": ["lib/mint/http1/parse.ex"], "programRoutines": [{"name": "'Elixir.Mint.HTTP1.Parse':content_length_header/1"}], "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.Parse'"], "packageName": "elixir-mint/mint", "packageURL": "pkg:github/elixir-mint/mint", "product": "mint", "programFiles": ["lib/mint/http1/parse.ex"], "programRoutines": [{"name": "'Elixir.Mint.HTTP1.Parse':content_length_header/1"}], "repo": "https://github.com/elixir-mint/mint.git", "vendor": "elixir-mint", "versions": [{"lessThan": "47e48027480228e4e32a0b4df39db497b4804921", "status": "affected", "version": "65e0e86d799a6d3b08e4372fccdd9747535e0dd6", "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": "Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in elixir-mint Mint allows attacker-controlled HTTP/1 servers to desynchronise response framing on shared connections.<p>Mint's HTTP/1 <tt>Content-Length</tt> parser, <tt>'Elixir.Mint.HTTP1.Parse':content_length_header/1</tt> in <tt>lib/mint/http1/parse.ex</tt>, parses the header value with <tt>Integer.parse/1</tt>, which accepts an optional <tt>+</tt> or <tt>-</tt> sign prefix. 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