CVE-2026-85730
Severity not reportedsmol-toml is a small, fast, and correct TOML parser and serializer.
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
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/squirrelchat/smol-toml/commit/30f5c367d946b695f379b5d4f0946b2f0a0a8c2f security-advisories@github.com
- https://github.com/squirrelchat/smol-toml/releases/tag/v1.7.1 security-advisories@github.com
- https://github.com/squirrelchat/smol-toml/security/advisories/GHSA-7w5x-hrqm-74c2 security-advisories@github.com
- https://medium.com/@ravindu.lakmina1/seven-bytes-that-freeze-a-node-js-server-forever-the-... security-advisories@github.com
- https://github.com/squirrelchat/smol-toml/security/advisories/GHSA-7w5x-hrqm-74c2 134c704f-9b21-4f2e-91b3-4a467353bcc0