PT-2026-42043 · Pypi · Sqlfluff

Published 2026-05-19 · Updated 2026-05-26 · CVE-2026-46374

OSV

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact

In deployments where untrusted users can provide SQL queries to be linted, an untrusted user can submit a malicious long query to any application using the parser to trigger a Denial of Service through resource exhaustion.

Patches

Versions 4.2.0 and up contain a configurable parse node limit, which is enabled by default, to prevent this manner of exploit.

Credit

Ori Nakar from Imperva Threat Research Team.

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2026-46374

GHSA-73JC-5MRQ-PRW7

Affected Products

Sqlfluff

References · 7

• https://osv.dev/vulnerability/GHSA-73jc-5mrq-prw7 · Vendor Advisory
• https://github.com/sqlfluff/sqlfluff/security/advisories/GHSA-73jc-5mrq-prw7 · Note
• https://github.com/sqlfluff/sqlfluff · Note
• https://reddit.com/r/cybersecurity/comments/1tkfk0l/14_npmpypiai_supplychain_threats_today_20260522 · Reddit Post
• https://reddit.com/r/VulnMatter/comments/1tiopdo/resumen_diario_de_vulnerabilidades_20052026 · Reddit Post
• https://reddit.com/r/cybersecurity/comments/1to25wg/14_npmpypiai_supplychain_threats_today_20260526 · Reddit Post
• https://reddit.com/r/VulnMatter/comments/1tjljj9/resumen_diario_de_vulnerabilidades_21052026 · Reddit Post