{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-85730","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-09-04T14:45:10.649Z","datePublished":"2026-09-04T15:21:14.948Z","dateUpdated":"2026-09-09T16:34:08.718Z"},"containers":{"cna":{"title":"smol-toml: Denial of Service via malformed TOML documents","problemTypes":[{"descriptions":[{"cweId":"CWE-606","lang":"en","description":"CWE-606: Unchecked Input for Loop Condition","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-835","lang":"en","description":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"references":[{"name":"https://github.com/squirrelchat/smol-toml/security/advisories/GHSA-7w5x-hrqm-74c2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/squirrelchat/smol-toml/security/advisories/GHSA-7w5x-hrqm-74c2"},{"name":"https://github.com/squirrelchat/smol-toml/commit/30f5c367d946b695f379b5d4f0946b2f0a0a8c2f","tags":["x_refsource_MISC"],"url":"https://github.com/squirrelchat/smol-toml/commit/30f5c367d946b695f379b5d4f0946b2f0a0a8c2f"},{"name":"https://github.com/squirrelchat/smol-toml/releases/tag/v1.7.1","tags":["x_refsource_MISC"],"url":"https://github.com/squirrelchat/smol-toml/releases/tag/v1.7.1"},{"name":"https://medium.com/@ravindu.lakmina1/seven-bytes-that-freeze-a-node-js-server-forever-the-story-of-cve-2026-85730-3213328b38f0","tags":["x_refsource_MISC"],"url":"https://medium.com/@ravindu.lakmina1/seven-bytes-that-freeze-a-node-js-server-forever-the-story-of-cve-2026-85730-3213328b38f0"}],"affected":[{"vendor":"squirrelchat","product":"smol-toml","versions":[{"version":"< 1.7.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-09T16:34:08.718Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-7w5x-hrqm-74c2","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/squirrelchat/smol-toml/security/advisories/GHSA-7w5x-hrqm-74c2","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-04T17:40:28.815540Z","id":"CVE-2026-85730","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-04T17:40:50.595Z"}}]}}