{"id":"CVE-2026-94194","revision":null,"records":[{"revision":"6977212af05148c19fb2a5d1439ac9a8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-94194","aliases":[],"title":"Mint HTTP/1 client applies chunked framing when chunked is not the final transfer coding, enabling response smuggling through intermediaries","description":"Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in elixir-mint mint allows a malicious HTTP/1 server to desynchronize an intermediary and the Mint client on a pooled connection, poisoning the responses to subsequent requests that share the connection.\n\nmessage_body/1 in lib/mint/http1.ex selects chunked framing when chunked is the first coding listed in a response's Transfer-Encoding fields. RFC 9112 section 6.3 applies chunked framing only when chunked is the final coding, and otherwise reads the body until the server closes the connection. For a response such as Transfer-Encoding: chunked, gzip, an intermediary that follows the RFC treats every byte up to the close as the body, while Mint ends the body at the zero-length chunk and parses the remaining bytes as the response to the next request on the connection.\n\nMint also keeps the connection open after an HTTP/1.0 response, final or 1xx, that carries Transfer-Encoding and Connection: keep-alive. RFC 9112 section 6.1 requires treating the framing of such a message as faulty and closing the connection after it, so bytes after its chunked body are parsed as the response to the next request in the same way.\n\nThis issue affects mint: from 0.1.0 before 1.10.2.","state":0,"publishedAt":"2026-09-28T11:15:30.684+00:00","modifiedAt":"2026-09-30T13:17:02.563+00:00","affected":[{"ecosystem":"https://repo.hex.pm","name":"mint","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"collectionURL\": \"https://repo.hex.pm\",\n                    \"cpes\": [\n                        \"cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*\"\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"modules\": [\n                        \"'Elixir.Mint.HTTP1'\"\n                    ],\n                    \"packageName\": \"mint\",\n                    \"packageURL\": \"pkg:hex/mint\",\n                    \"product\": \"mint\",\n                    \"programFiles\": [\n                        \"lib/mint/http1.ex\"\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"'Elixir.Mint.HTTP1':message_body/1\"\n                        },\n                        {\n                            \"name\": \"'Elixir.Mint.HTTP1':stream/2\"\n                        },\n                        {\n                            \"name\": \"'Elixir.Mint.HTTP1':recv/3\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/elixir-mint/mint\",\n                    \"vendor\": \"elixir-mint\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"1.10.2\",\n                            \"status\": \"affected\",\n                            \"version\": \"0.1.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"https://github.com","name":"elixir-mint/mint","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"collectionURL\": \"https://github.com\",\n                    \"cpes\": [\n                        \"cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*\"\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"modules\": [\n                        \"'Elixir.Mint.HTTP1'\"\n                    ],\n                    \"packageName\": \"elixir-mint/mint\",\n                    \"packageURL\": \"pkg:github/elixir-mint/mint\",\n                    \"product\": \"mint\",\n                    \"programFiles\": [\n                        \"lib/mint/http1.ex\"\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"'Elixir.Mint.HTTP1':message_body/1\"\n                        },\n                        {\n                            \"name\": \"'Elixir.Mint.HTTP1':stream/2\"\n                        },\n                        {\n                            \"name\": \"'Elixir.Mint.HTTP1':recv/3\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/elixir-mint/mint\",\n                    \"vendor\": \"elixir-mint\",\n                    \"versions\": [\n                        {\n                            \"changes\": [\n                                {\n                                    \"at\": \"2ec8b696b5475ecbdaa87c0098957bca339e17c0\",\n                                    \"status\": \"unaffected\"\n                                },\n                                {\n                                    \"at\": \"8d1bbcfa566a8c1dc23d33f40d550c28250ac7b9\",\n                                    \"status\": \"unaffected\"\n                                }\n                            ],\n                            \"lessThan\": \"*\",\n                            \"status\": \"affected\",\n                            \"version\": \"60089586ec7adc9fddb09f69a2f5919ba9ac7f33\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.3,"severity":"MEDIUM"}],"references":["https://github.com/elixir-mint/mint/security/advisories/GHSA-gvrc-75rc-7gj9","https://cna.erlef.org/cves/CVE-2026-94194.html","https://osv.dev/vulnerability/EEF-CVE-2026-94194","https://github.com/elixir-mint/mint/commit/60089586ec7adc9fddb09f69a2f5919ba9ac7f33","https://github.com/elixir-mint/mint/commit/2ec8b696b5475ecbdaa87c0098957bca339e17c0","https://github.com/elixir-mint/mint/commit/8d1bbcfa566a8c1dc23d33f40d550c28250ac7b9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-94194","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-94194","identifiers":["CVE-2026-94194"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-12T04:59:02.1392693+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-12T04:59:02.1392693+00:00","lastSuccessAt":"2026-11-12T04:59:02.3201564+00:00","error":null,"lastVerifiedAt":"2026-11-12T04:59:02.3201571+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-64752486c567b55b31fb0d7225f5222bcd0019564ac0ac5f0649e242c7b19299-ef591e4f0e76c3b422ff0b88d5784af14d3e351e9edea517ce7d635ea6edee46","complete":true,"records":424594,"lastAttemptAt":"2026-11-12T04:56:44.8167998+00:00","lastSuccessAt":"2026-11-12T04:56:44.7933175+00:00","error":null,"lastVerifiedAt":"2026-11-12T04:56:44.8167998+00:00","snapshotPublishedAt":"2026-11-12T04:29:08+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-1556443ae10949beb23dc0d6b75915ad","complete":false,"records":13760,"lastAttemptAt":"2026-11-12T05:06:06.4823798+00:00","lastSuccessAt":"2026-11-12T05:06:06.472+00:00","error":"78 identifier lookups failed; latest failures include AccessDenied (HTTP 403). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-12T05:06:06.472+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13735,"expectedIdentifiers":13813,"failedIdentifiers":78},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-12T04:59:02.1392693+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-12T04:59:02.1392693+00:00","lastSuccessAt":"2026-11-12T04:59:02.3208823+00:00","error":null,"lastVerifiedAt":"2026-11-12T04:59:02.3208825+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-80af9ca000ef483a88b41952aab63f47","complete":true,"records":13760,"lastAttemptAt":"2026-11-12T04:59:27.4436031+00:00","lastSuccessAt":"2026-11-12T04:59:27.44+00:00","error":null,"lastVerifiedAt":"2026-11-12T04:59:27.44+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-12T04:59:01.6490656+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-12T04:59:01.6490656+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-12T04:56:44.9519384+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-12T04:56:44.9519384+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-12T04:59:02.0419805+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-12T04:59:02.0419805+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-fda6475739002437b659ab0b5b310aa7608c40371b1aa4c3777924ea9bcf2169","complete":true,"records":231696,"lastAttemptAt":"2026-11-12T04:59:01.5212948+00:00","lastSuccessAt":"2026-11-12T04:58:59.9809674+00:00","error":null,"lastVerifiedAt":"2026-11-12T04:59:01.5212948+00:00","snapshotPublishedAt":"2026-11-12T04:33:21+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}