CVE-2026-85730

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

No CVSS.

References

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

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-04 16:18

Updated : 2026-09-09 21:09

NVD link : CVE-2026-85730

Mitre link : CVE-2026-85730

CVE.ORG link : CVE-2026-85730

JSON object : View

Products Affected

No product.

CWE

CWE-606

Unchecked Input for Loop Condition

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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