# CVE-2026-85730

## Summary

- **CVE ID:** CVE-2026-85730
- **Severity:** HIGH
- **CVSS Score:** 8.2 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-606, CWE-835
- **Published:** Sep 4, 2026
- **Last Modified:** Sep 9, 2026

## Description

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.

## Affected Products

- squirrelchat — smol-toml (< 1.7.1)

## References

- [CNA](https://github.com/squirrelchat/smol-toml/security/advisories/GHSA-7w5x-hrqm-74c2)
- [CNA](https://github.com/squirrelchat/smol-toml/commit/30f5c367d946b695f379b5d4f0946b2f0a0a8c2f)
- [CNA](https://github.com/squirrelchat/smol-toml/releases/tag/v1.7.1)
- [CNA](https://medium.com/@ravindu.lakmina1/seven-bytes-that-freeze-a-node-js-server-forever-the-story-of-cve-2026-85730-3213328b38f0)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.37%
- **EPSS Percentile:** 30.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._