{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-58229", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-06-29T18:54:08.633Z", "datePublished": "2026-07-14T08:36:54.616Z", "dateUpdated": "2026-07-14T12:27:15.737Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Mint.HTTP1'"], "packageName": "mint", "packageURL": "pkg:hex/mint", "product": "mint", "programFiles": ["lib/mint/http1.ex"], "programRoutines": [{"name": "'Elixir.Mint.HTTP1':decode_headers/5"}, {"name": "'Elixir.Mint.HTTP1':decode_trailer_headers/4"}], "repo": "https://github.com/elixir-mint/mint", "vendor": "elixir-mint", "versions": [{"lessThan": "1.9.2", "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'"], "packageName": "elixir-mint/mint", "packageURL": "pkg:github/elixir-mint/mint", "product": "mint", "programFiles": ["lib/mint/http1.ex"], "programRoutines": [{"name": "'Elixir.Mint.HTTP1':decode_headers/5"}, {"name": "'Elixir.Mint.HTTP1':decode_trailer_headers/4"}], "repo": "https://github.com/elixir-mint/mint", "vendor": "elixir-mint", "versions": [{"lessThan": "566d702e6f29105f77522ca7aabb9f64f2f4e333", "status": "affected", "version": "3e6de4bac4821b0eb4d6109e8b1f3fb6458792c8", "versionType": "git"}]}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:elixir-mint:mint:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.9.2", "versionStartIncluding": "0.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "finder", "value": "zx (Jace)"}, {"lang": "en", "type": "remediation developer", "value": "Andrea Leopardi"}, {"lang": "en", "type": "remediation reviewer", "value": "Eric Meadows-J\u00f6nsson"}, {"lang": "en", "type": "analyst", "value": "Jonatan M\u00e4nnchen / EEF"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Allocation of resources without limits vulnerability in elixir-mint mint allows a remote HTTP server to exhaust memory on the client host and cause a denial of service.</p><p>The <tt>Mint.HTTP1.decode_headers/5</tt> and <tt>Mint.HTTP1.decode_trailer_headers/4</tt> functions in <tt>lib/mint/http1.ex</tt> accumulate every parsed response header and chunked-trailer field into a per-request list that persists across incoming TCP segments as <tt>request.headers_buffer</tt>, and only clear it when the terminating blank line is received. The section has no cap on the number of headers or on total bytes, and the underlying <tt>:erlang.decode_packet(:httph_bin, binary, [])</tt> parser is invoked with an empty option list so its per-line and per-packet size limits also default to unlimited.</p><p>A malicious HTTP server (reachable directly, via an attacker-controlled redirect, via SSRF, or via a man-in-the-middle) can stream complete header lines (or, after a chunked body, complete trailer lines) indefinitely without ever emitting the terminating blank line. The connection state grows without bound until the BEAM node is killed by the operating system's out-of-memory handler, taking down the entire application that uses Mint as an HTTP client.</p><p>This issue affects mint: from 0.1.0 before 1.9.2.</p>"}], "value": "Allocation of resources without limits vulnerability in elixir-mint mint allows a remote HTTP server to exhaust memory on the client host and cause a denial of service.\n\nThe Mint.HTTP1.decode_headers/5 and Mint.HTTP1.decode_trailer_headers/4 functions in lib/mint/http1.ex accumulate every parsed response header and chunked-trailer field into a per-request list that persists across incoming TCP segments as request.headers_buffer, and only clear it when the terminating blank line is received. The section has no cap on the number of headers or on total bytes, and the underlying :erlang.decode_packet(:httph_bin, binary, []) parser is invoked with an empty option list so its per-line and per-packet size limits also default to unlimited.\n\nA malicious HTTP server (reachable directly, via an attacker-controlled redirect, via SSRF, or via a man-in-the-middle) can stream complete header lines (or, after a chunked body, complete trailer lines) indefinitely without ever emitting the terminating blank line. The connection state grows without bound until the BEAM node is killed by the operating system's out-of-memory handler, taking down the entire application that uses Mint as an HTTP client.\n\nThis issue affects mint: from 0.1.0 before 1.9.2."}], "impacts": [{"capecId": "CAPEC-130", "descriptions": [{"lang": "en", "value": "CAPEC-130 Excessive Allocation"}]}], "metrics": [{"cvssV4_0": {"attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 8.2, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "description": "CWE-770 Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-07-14T08:36:54.616Z"}, "references": [{"tags": ["vendor-advisory", "related"], "url": "https://github.com/elixir-mint/mint/security/advisories/GHSA-qrfr-wh4c-3qhw"}, {"tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-58229.html"}, {"tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-58229"}, {"tags": ["patch"], "url": "https://github.com/elixir-mint/mint/commit/566d702e6f29105f77522ca7aabb9f64f2f4e333"}], "source": {"discovery": "EXTERNAL"}, "title": "Unbounded HTTP/1 response-header and chunked-trailer accumulation in Mint causes memory-exhaustion DoS", "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"references": [{"url": "https://github.com/elixir-mint/mint/security/advisories/GHSA-qrfr-wh4c-3qhw", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-14T12:27:10.055823Z", "id": "CVE-2026-58229", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-14T12:27:15.737Z"}}]}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.1.0,1.9.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3e6de4bac4821b0eb4d6109e8b1f3fb6458792c8,566d702e6f29105f77522ca7aabb9f64f2f4e333)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "mint", "source": "cna", "vendor": "elixir-mint"}, "product": "mint", "vendor": "elixir-mint"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3e6de4bac4821b0eb4d6109e8b1f3fb6458792c8,566d702e6f29105f77522ca7aabb9f64f2f4e333)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "mint", "source": "cna", "vendor": "elixir-mint"}, "product": "mint", "vendor": "elixir-mint"}], "created": "2026-07-14T11:00:09.775116+00:00", "updated": "2026-07-14T11:00:09.775146+00:00", "vendors": ["elixir-mint", "elixir-mint$PRODUCT$mint"]}