{"id":"CVE-2026-85730","summary":"smol-toml: Denial of Service via malformed TOML documents","details":"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.","aliases":["GHSA-7w5x-hrqm-74c2"],"modified":"2026-09-10T03:48:29.371878376Z","published":"2026-09-04T15:21:14.948Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-606","CWE-835"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85730.json"},"references":[{"type":"WEB","url":"https://github.com/squirrelchat/smol-toml/releases/tag/v1.7.1"},{"type":"WEB","url":"https://medium.com/@ravindu.lakmina1/seven-bytes-that-freeze-a-node-js-server-forever-the-story-of-cve-2026-85730-3213328b38f0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85730.json"},{"type":"ADVISORY","url":"https://github.com/squirrelchat/smol-toml/security/advisories/GHSA-7w5x-hrqm-74c2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85730"},{"type":"FIX","url":"https://github.com/squirrelchat/smol-toml/commit/30f5c367d946b695f379b5d4f0946b2f0a0a8c2f"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/squirrelchat/smol-toml","events":[{"introduced":"0"},{"fixed":"30f5c367d946b695f379b5d4f0946b2f0a0a8c2f"},{"fixed":"3e978a945ef9b15056d55f6ad92dd48fb05fe28e"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.7.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v1.7.0","v1.6.1","v1.6.0","v1.5.2","v1.5.1","v1.5.0","v1.4.2","v1.4.1","v1.4.0","v1.3.4","v1.3.3","v1.3.2","v1.3.0","v1.2.2","v1.2.1","v1.2.0","v1.1.4","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85730.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}