# CVE-2026-114144: toml-node denial of service in integer parsing

Source: https://junglewise.ai/threats/cve-2026-114144-toml-node-is-a-toml-parser-for-node-js-and-the-browser-prior-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-21. Updated: 2026-10-21  
License: CC BY 4.0 with a link back

CVE-2026-114144 · Severity: high · CVSS 7.5 · Published 2026-10-21

toml-node is a TOML parser used in Node.js and browser applications. An attacker can send a specially crafted TOML document with extremely long integer literals that consume excessive CPU time, freezing the application and preventing it from processing other requests or tasks.

Technologies: [BinaryMuse Toml-Node](https://junglewise.ai/threats/technologies/toml-node), [toml (npm)](https://junglewise.ai/threats/technologies/toml). Vendors: [BinaryMuse](https://junglewise.ai/threats/vendors/binarymuse), [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-114144 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-114144 being exploited in the wild.

**How severe is CVE-2026-114144?** High severity, with a CVSS score of 7.5, published 21 October 2026.

**Which products and versions are affected?** BinaryMuse Toml-Node before 5.0.1; toml (npm) <= 5.0.0, SEMVER:introduced=0,fixed=5.0.1.

**Is there a fix for CVE-2026-114144?** Yes. toml (npm): upgrade to 5.0.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-114144 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-114144?** Check whether you run BinaryMuse Toml-Node or toml (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- toml (npm): upgrade to 5.0.1 or later

  ```sh
  npm install toml@5.0.1
  ```


## Technical details

The vulnerability exists in toml.parse(), which passes unbounded digit sequences to JavaScript's BigInt() function before validating whether the resulting value fits TOML's 64-bit integer range. Converting sufficiently long integer strings takes super-linear CPU time and blocks the Node.js event loop synchronously. An attacker with the ability to supply TOML input can trigger a denial of service by crafting a document with multi-megabyte integer literals.

## Affected products

- BinaryMuse toml-node before 5.0.1

## Identifiers

- CVE-2026-114144
- GHSA-9qmh-m7c6-f92p

## Timeline

- 2026-10-21: disclosed

## References

- [https://github.com/BinaryMuse/toml-node/commit/9d52e384f6030932174d1afb0d910154dd62dead](https://github.com/BinaryMuse/toml-node/commit/9d52e384f6030932174d1afb0d910154dd62dead)
- [https://github.com/BinaryMuse/toml-node/releases/tag/v5.0.1](https://github.com/BinaryMuse/toml-node/releases/tag/v5.0.1)

## Related threats

- [toml-node TOML parser ReDoS in dotted key processing](https://junglewise.ai/threats/cve-2026-114143-toml-node-is-a-toml-parser-for-node-js-and-the-browser-prior-to)
- [toml-node TOML parser prototype pollution in quoteDottedString](https://junglewise.ai/threats/cve-2026-114142-toml-node-is-a-toml-parser-for-node-js-and-the-browser-prior-to)
- [toml-node ReDoS in TOML parser array-of-tables header processing](https://junglewise.ai/threats/cve-2026-114141-toml-node-is-a-toml-parser-for-node-js-and-the-browser-prior-to)
- [toml-node uncontrolled recursion in parser](https://junglewise.ai/threats/cve-2026-77465-toml-node-uncontrolled-recursion-in-parser)
- [npm toml prototype pollution via __proto__ desynchronization](https://junglewise.ai/threats/cve-2026-63376-npm-toml-prototype-pollution-via-proto-desynchronization)