CVE-2026-114142
toml-node: Prototype pollution: parsing a TOML document can write to Object.prototype
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
toml-node is a TOML parser for Node.js and the browser. Prior to 5.0.1, toml.parse() can write attacker-controlled properties to Object.prototype because quoteDottedString() in lib/compiler.js produces the same bookkeeping string for distinct quoted key paths, allowing addTableArray() to clear another key's guard. The assign() path then descends through an unowned Date value without applying the owned-container check and can reach the prototype chain. Objects created elsewhere in the process can inherit the injected property. This issue is fixed in version 5.0.1.
| CWE | CWE-1321 |
| Vendor | binarymuse |
| Product | toml-node |
| Published | Oct 21, 2026 |
Stay Ahead of the Next One
Get instant alerts for binarymuse toml-node
Be the first to know when new unknown vulnerabilities affecting binarymuse toml-node are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
BinaryMuse / toml-node
< 5.0.1