Recommended action window: Monitor and triage in normal cycle
NVD 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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
We found two DoS bugs in the toml parser for Node.js: a ~100 KB settings file freezes the process for seconds, a ~200 KB one crashes it. Fixed in toml 5.0.1 (CVE-2026-114143, CVE-2026-114141). Technical writeup: https://t.co/M0ShbDDz8L