CVE-2026-85730

CVE-2026-85730 · smol-toml: Denial of Service via malformed TOML documents

This page contains facts from public vulnerability sources. Check the original advisory before updating.

smol-toml is a small, fast, and correct TOML parser and serializer. Prior to 1.7.1, parse() can enter an infinite loop when a value inside an array or inline table is followed by a comment with no trailing newline. In src/util.ts, skipUntil() calls indexOfNewline(), receives -1 at the end of input, and resets the cursor to the beginning of the string instead of leaving the structure scan. The parser then hangs indefinitely and can consume a service's processing capacity when an application parses attacker-controlled TOML. This issue is fixed in version 1.7.1.

CVSS 8.2 · High · EPSS 0.5% · Fix available

Published

2026-09-04T15:21:14.948Z

Updated

2026-09-09T16:34:08.718Z

Stack: node

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