High 8.7Published Oct 21, 2026

CVE-2026-114143toml-node: Quadratic-complexity DoS via long dotted keys or table paths in toml.parse()

Updated under an hour ago (Oct 28, 2026, 2:10 PM ET)

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It affects BinaryMuse toml-node. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.36%, higher than 30% of scored CVEs.

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Every CVE for BinaryMuse toml-node

Exploited in the last 30 days

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.

CVSS: 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-407
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.36% (percentile 30)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 27, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

BinaryMuse toml-node binarymuse:toml_node (from the name)	before 5.0.1	CNA record

References

References

https://github.com/BinaryMuse/toml-node/security/advisories/GHSA-9j65-hcg3-gc64	x-refsource-confirm
https://github.com/BinaryMuse/toml-node/commit/609c873fffea0a27ebe5b4dd098eed2b3daf3606	x-refsource-misc
https://github.com/BinaryMuse/toml-node/releases/tag/v5.0.1	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.