{"id":"CVE-2026-52746","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-52746","generatedAt":"2026-10-28T02:21:09.558Z","title":"Prior to 2.2.0 and 1.8.9, malicious non-matching inputs to the $toMillis function can cause superlinear backtracking in the ISO-8601 validation regex, leading to denial of service in applications that evaluate user-provided JSONata expressions.","description":"JSONata is a JSON query and transformation language. Prior to 2.2.0 and 1.8.9, malicious non-matching inputs to the $toMillis function can cause superlinear backtracking in the ISO-8601 validation regex, leading to denial of service in applications that evaluate user-provided JSONata expressions. This issue is fixed in version 2.2.0 and 1.8.9.","published":"2026-07-17T19:17:17.000Z","lastModified":"2026-10-24T20:10:00.000Z","status":"Modified","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-1333"],"affected":["jsonata/jsonata"],"epss":{"score":0.00689,"percentile":0.52491,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/jsonata-js/jsonata/commit/80ba95d170f74e3f20f4f36b8b77d8c85cea7686","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/jsonata-js/jsonata/commit/d6ffc17cb16a8e53c222205bd274624e919cce0b","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/jsonata-js/jsonata/pull/782","tags":["Issue Tracking","Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/jsonata-js/jsonata/pull/793","tags":["Issue Tracking","Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/jsonata-js/jsonata/releases/tag/v1.8.9","source":"security-advisories@github.com"},{"url":"https://github.com/jsonata-js/jsonata/releases/tag/v2.2.0","tags":["Product","Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/jsonata-js/jsonata/security/advisories/GHSA-86vw-mfpg-wwv9","tags":["Patch","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-52746","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}