CVE-2026-46373
CVE-2026-46373 is a high-severity vulnerability in Sqlfluff with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-674.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-35854
- Weakness: CWE-674
- Affected product: Sqlfluff
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-46373?
- 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.
- How severe is CVE-2026-46373?
- CVE-2026-46373 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-46373 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-46373?
- CVE-2026-46373 affects Sqlfluff. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-46373?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-46373 have an EU (EUVD) identifier?
- Yes. CVE-2026-46373 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35854.
- When was CVE-2026-46373 published?
- CVE-2026-46373 was published on 2026-06-09 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:sqlfluff:sqlfluff:*:*:*:*:*:*:*:*
More vulnerabilities in Sqlfluff
- CVE-2026-46374 — High (CVSS 7.5): SQLFluff is a modular SQL linter and auto-formatter with support for multiple dialects and templated code. Prior to…
- CVE-2023-36830 — Medium (CVSS 6.3): SQLFluff is a SQL linter. Prior to version 2.1.2, in environments where untrusted users have access to the config…
Other CWE-674 (Uncontrolled Recursion) vulnerabilities
- CVE-2026-43185 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix signededness bug in…
- CVE-2023-51803 — Critical (CVSS 9.8): LinuxServer.io Heimdall before 2.5.7 does not prevent use of icons that have non-image data such as the "<?php ?>"…
- CVE-2021-41752 — Critical (CVSS 9.8): Stack overflow vulnerability in Jerryscript before commit e1ce7dd7271288be8c0c8136eea9107df73a8ce2 on Oct 20, 2021 due…
- CVE-2018-1000618 — Critical (CVSS 9.8): EOSIO/eos eos version after commit f1545dd0ae2b77580c2236fdb70ae7138d2c7168 contains a stack overflow vulnerability in…
- CVE-2025-10728 — Critical (CVSS 9.4): When the module renders a Svg file that contains a <pattern> element, it might end up rendering it recursively leading…
- CVE-2026-40324 — Critical (CVSS 9.1): Hot Chocolate is an open-source GraphQL server. Prior to versions 12.22.7, 13.9.16, 14.3.1, and 15.1.14, Hot…
Browse all CWE-674 (Uncontrolled Recursion) vulnerabilities →