{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-32686",
        "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "state": "PUBLISHED",
        "assignerShortName": "EEF",
        "dateReserved": "2026-03-13T09:12:14.474Z",
        "datePublished": "2026-05-07T14:04:47.222Z",
        "dateUpdated": "2026-09-08T13:08:41.575Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://repo.hex.pm",
                    "cpes": [
                        "cpe:2.3:a:ericmj:decimal:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.Decimal'"
                    ],
                    "packageName": "decimal",
                    "packageURL": "pkg:hex/decimal",
                    "product": "decimal",
                    "programFiles": [
                        "lib/decimal.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.Decimal':new/1"
                        },
                        {
                            "name": "'Elixir.Decimal':parse/1"
                        },
                        {
                            "name": "'Elixir.Decimal':cast/1"
                        },
                        {
                            "name": "'Elixir.Decimal':add/2"
                        },
                        {
                            "name": "'Elixir.Decimal':sub/2"
                        },
                        {
                            "name": "'Elixir.Decimal':div/2"
                        },
                        {
                            "name": "'Elixir.Decimal':to_string/2"
                        },
                        {
                            "name": "'Elixir.Decimal':to_integer/1"
                        },
                        {
                            "name": "'Elixir.Decimal':round/3"
                        },
                        {
                            "name": "'Elixir.Decimal':compare/3"
                        }
                    ],
                    "repo": "https://github.com/ericmj/decimal",
                    "vendor": "ericmj",
                    "versions": [
                        {
                            "lessThan": "3.0.0",
                            "status": "affected",
                            "version": "0.1.0",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "collectionURL": "https://github.com",
                    "cpes": [
                        "cpe:2.3:a:ericmj:decimal:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.Decimal'"
                    ],
                    "packageName": "ericmj/decimal",
                    "packageURL": "pkg:github/ericmj/decimal",
                    "product": "decimal",
                    "programFiles": [
                        "lib/decimal.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.Decimal':new/1"
                        },
                        {
                            "name": "'Elixir.Decimal':parse/1"
                        },
                        {
                            "name": "'Elixir.Decimal':cast/1"
                        },
                        {
                            "name": "'Elixir.Decimal':add/2"
                        },
                        {
                            "name": "'Elixir.Decimal':sub/2"
                        },
                        {
                            "name": "'Elixir.Decimal':div/2"
                        },
                        {
                            "name": "'Elixir.Decimal':to_string/2"
                        },
                        {
                            "name": "'Elixir.Decimal':to_integer/1"
                        },
                        {
                            "name": "'Elixir.Decimal':round/3"
                        },
                        {
                            "name": "'Elixir.Decimal':compare/3"
                        }
                    ],
                    "repo": "https://github.com/ericmj/decimal",
                    "vendor": "ericmj",
                    "versions": [
                        {
                            "lessThan": "6a523f3a73b8c9974540e21c7aa88f1258bb35ae",
                            "status": "affected",
                            "version": "bc11f4a2b6fb61fc1360a0ab4e79141bba918841",
                            "versionType": "git"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "cpeMatch": [
                                {
                                    "criteria": "cpe:2.3:a:ericmj:decimal:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "3.0.0",
                                    "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-Jönsson / Hex.pm"
                },
                {
                    "lang": "en",
                    "type": "remediation reviewer",
                    "value": "José Valim"
                },
                {
                    "lang": "en",
                    "type": "remediation reviewer",
                    "value": "Wojtek Mach"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Jonatan Männchen / EEF"
                },
                {
                    "lang": "en",
                    "type": "remediation reviewer",
                    "value": "ruslandoga"
                },
                {
                    "lang": "en",
                    "type": "remediation reviewer",
                    "value": "Matthew Johnston"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>Uncontrolled Resource Consumption vulnerability in ericmj decimal allows unauthenticated remote Denial of Service.</p>\n<p>The <code>decimal</code> library does not bound the exponent on parsed input. Storing a decimal with a very large exponent (e.g. <code>Decimal.new(\"1e1000000000\")</code>) is accepted without error. Subsequent calls to arithmetic functions (<code>Decimal.add/2</code>, <code>Decimal.sub/2</code>, <code>Decimal.div/2</code>M), <code>Decimal.to_string/2</code>M with <code>:normal</code>M or <code>:xsd</code>M format, <code>Decimal.to_integer/1</code>M, <code>Decimal.round/3</code>M, or <code>Decimal.compare/3</code>M with a threshold allocate memory proportional to the exponent value, which can exhaust available memory and crash the BEAM VM.</p>\n<p>Any application that accepts user-supplied decimal input and subsequently performs arithmetic, rounding, conversion to integer, or string formatting on it is exposed. A single malicious request is sufficient to cause an out-of-memory crash.</p>\n<p>This issue affects decimal: from 0.1.0 before 3.0.0.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "Uncontrolled Resource Consumption vulnerability in ericmj decimal allows unauthenticated remote Denial of Service.\n\nThe `decimal` library does not bound the exponent on parsed input. Storing a decimal with a very large exponent (e.g. `Decimal.new(\"1e1000000000\")`) is accepted without error. Subsequent calls to arithmetic functions (`Decimal.add/2`, `Decimal.sub/2`, `Decimal.div/2`M), `Decimal.to_string/2`M with `:normal`M or `:xsd`M format, `Decimal.to_integer/1`M, `Decimal.round/3`M, or `Decimal.compare/3`M with a threshold allocate memory proportional to the exponent value, which can exhaust available memory and crash the BEAM VM.\n\nAny application that accepts user-supplied decimal input and subsequently performs arithmetic, rounding, conversion to integer, or string formatting on it is exposed. A single malicious request is sufficient to cause an out-of-memory crash.\n\nThis issue affects decimal: from 0.1.0 before 3.0.0."
                        }
                    ],
                    "value": "Uncontrolled Resource Consumption vulnerability in ericmj decimal allows unauthenticated remote Denial of Service.\n\nThe decimal library does not bound the exponent on parsed input. Storing a decimal with a very large exponent (e.g. Decimal.new(\"1e1000000000\")) is accepted without error. Subsequent calls to arithmetic functions (Decimal.add/2, Decimal.sub/2, Decimal.div/2M), Decimal.to_string/2M with :normalM or :xsdM format, Decimal.to_integer/1M, Decimal.round/3M, or Decimal.compare/3M with a threshold allocate memory proportional to the exponent value, which can exhaust available memory and crash the BEAM VM.\n\nAny application that accepts user-supplied decimal input and subsequently performs arithmetic, rounding, conversion to integer, or string formatting on it is exposed. A single malicious request is sufficient to cause an out-of-memory crash.\n\nThis issue affects decimal: from 0.1.0 before 3.0.0."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-130",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-130 Excessive Allocation"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "attackVector": "LOCAL",
                        "baseScore": 6.9,
                        "baseSeverity": "MEDIUM",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "NONE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/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",
                        "vulnerabilityResponseEffort": "NOT_DEFINED"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-400",
                            "description": "CWE-400 Uncontrolled Resource Consumption",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
                "shortName": "EEF",
                "dateUpdated": "2026-09-08T13:08:41.575Z"
            },
            "references": [
                {
                    "tags": [
                        "vendor-advisory",
                        "related"
                    ],
                    "url": "https://github.com/ericmj/decimal/security/advisories/GHSA-rhv4-8758-jx7v"
                },
                {
                    "name": "EEF CNA record for CVE-2026-32686",
                    "tags": [
                        "related"
                    ],
                    "url": "https://cna.erlef.org/cves/CVE-2026-32686.html"
                },
                {
                    "name": "OSV record EEF-CVE-2026-32686",
                    "tags": [
                        "related"
                    ],
                    "url": "https://osv.dev/vulnerability/EEF-CVE-2026-32686"
                },
                {
                    "name": "Introducing commit bc11f4a in ericmj/decimal",
                    "tags": [
                        "related"
                    ],
                    "url": "https://github.com/ericmj/decimal/commit/bc11f4a2b6fb61fc1360a0ab4e79141bba918841"
                },
                {
                    "name": "Fix commit 6a523f3 in ericmj/decimal",
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/ericmj/decimal/commit/6a523f3a73b8c9974540e21c7aa88f1258bb35ae"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "title": "Unbounded exponent in decimal enables unauthenticated DoS"
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/ericmj/decimal/security/advisories/GHSA-rhv4-8758-jx7v",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-08T22:42:13.343081Z",
                                "id": "CVE-2026-32686",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
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                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-05-08T22:43:03.396Z"
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}