{"id":"CVE-2026-46373","aliases":["GHSA-wmhf-fqc8-vxhh","PYSEC-2026-209"],"url":"https://o3.security/vulnerability/CVE-2026-46373","summary":"SQLFluff: Recursive Stack Overflow in Parser","details":"SQLFluff is a modular SQL linter and auto-formatter with support for multiple dialects and templated code. Prior to version 4.1.0, in deployments where untrusted users can provide SQL queries to be linted, an untrusted user can submit a malicious query with deliberate excessive nesting to any application using the parser to trigger a Denial of Service through resource exhaustion. This issue has been patched in version 4.1.0.","published":"2026-06-09T22:38:33.313Z","modified":"2026-07-25T03:56:13.712649566Z","cvss":{"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"},"epss":{"score":0.00263,"percentile":0.17942,"asOf":"2026-08-10"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"sqlfluff","fixedVersion":"4.1.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46373.json"},{"type":"ADVISORY","url":"https://github.com/sqlfluff/sqlfluff/security/advisories/GHSA-wmhf-fqc8-vxhh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46373"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-25T03:56:13.712649566Z"}}