{"id":"CVE-2026-114144","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-114144","generatedAt":"2026-10-28T07:41:52.078Z","title":"Converting a sufficiently long integer string consumes super-linear CPU time and synchronously blocks the Node.js event loop, allowing one attacker-supplied TOML document to deny service to concurrent work in the process.","description":"toml-node is a TOML parser for Node.js and the browser. Prior to 5.0.1, toml.parse() passes unbounded hexadecimal, octal, binary, and decimal digit sequences from lib/parser.js to BigInt() before reduceInteger() in lib/compiler.js checks whether the resulting value fits the TOML 64-bit integer range. Converting a sufficiently long integer string consumes super-linear CPU time and synchronously blocks the Node.js event loop, allowing one attacker-supplied TOML document to deny service to concurrent work in the process. The later range check cannot prevent the conversion cost because it executes after BigInt(). This issue is fixed in version 5.0.1.","published":"2026-10-21T21:17:57.000Z","lastModified":"2026-10-22T16:48:25.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-400","CWE-770"],"affected":[],"epss":{"score":0.0044,"percentile":0.38074,"date":"2026-10-27","history":[{"date":"2026-10-22","score":0.00339,"percentile":0.2608}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-21T21:17:57.000Z","detail":{"score":"7.5","severity":"HIGH","publishedAt":"2026-10-21T21:17:57.103Z"},"summary":"New CVE, high severity (CVSS 7.5)."}],"references":[{"url":"https://github.com/BinaryMuse/toml-node/commit/9d52e384f6030932174d1afb0d910154dd62dead","source":"security-advisories@github.com"},{"url":"https://github.com/BinaryMuse/toml-node/releases/tag/v5.0.1","source":"security-advisories@github.com"},{"url":"https://github.com/BinaryMuse/toml-node/security/advisories/GHSA-9qmh-m7c6-f92p","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-114144","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}