Vulnerability Description
toml-node is a TOML parser for Node.js and the browser. Prior to 5.0.1, toml.parse() repeatedly slices and rejoins every path prefix in lib/compiler.js while processing long dotted keys, table headers, array-of-tables headers, and inline-table keys in assign(), deepRef(), and setNestedKey(). The resulting quadratic work can block the Node.js event loop for several seconds, and sufficiently long paths can terminate the process through memory exhaustion. The maxDepth option does not limit key-segment count and therefore does not mitigate this path. This issue is fixed in version 5.0.1.
Related Weaknesses (CWE)
References
- https://github.com/BinaryMuse/toml-node/commit/609c873fffea0a27ebe5b4dd098eed2b3
- https://github.com/BinaryMuse/toml-node/releases/tag/v5.0.1
- https://github.com/BinaryMuse/toml-node/security/advisories/GHSA-9j65-hcg3-gc64
- https://github.com/BinaryMuse/toml-node/security/advisories/GHSA-9j65-hcg3-gc64
FAQ
What is CVE-2026-114143?
CVE-2026-114143 is a documented vulnerability. toml-node is a TOML parser for Node.js and the browser. Prior to 5.0.1, toml.parse() repeatedly slices and rejoins every path prefix in lib/compiler.js while processing long dotted keys, table headers...
How severe is CVE-2026-114143?
CVSS scoring is not yet available for CVE-2026-114143. Check NVD for updates.
Is there a patch for CVE-2026-114143?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.