CVE-2026-114143High· 8.7▾ MidnightPoC availabletoml-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…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 47.8 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 23.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.3%
Last analysed / modified upstream
0.3% → 0.5%
Exploit / PoC code exists
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.
toml-node < 5.0.1Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
toml <= 5.0.0Patched in:
toml 5.0.1Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-114141High· 8.7toml-node: Quadratic-complexity DoS via many array-of-tables headers in toml.parse()
CVE-2026-114142High· 8.8toml-node: Prototype pollution: parsing a TOML document can write to Object.prototype
CVE-2026-114129Medium· 6.2stream-json: FlexAssembler string/RegExp path filters join the full key stack per container start, giving O(depth^2) CPU denial of service
CVE-2026-111758High· 7.5markdown-it: Quadratic-time rendering of a single multi-line link reference definition with default options (regression since 14.0)
CVE-2026-111759High· 7.5markdown-it: Quadratic complexity in smartquotes with unmatched closing quotes
CVE-2026-110871Medium· 6.5Nodemailer from 3.0.0 before 10.0.10 contains a denial of service vulnerability in MessageParser.parseHeaders that allows users to exhaust CPU through quadratic header unfolding