{"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":"

Uncontrolled Resource Consumption vulnerability in ericmj decimal allows unauthenticated remote Denial of Service.

\n

The 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

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.

\n

This issue affects decimal: from 0.1.0 before 3.0.0.

"},{"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"},{"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":"2026-05-08T22:43:03.396Z"}}]}}