CVE-2024-4340 | Passing a heavily nested list to sqlparse.parse() leads to a Denial of Service due to RecursionError.

Passing a heavily nested list to sqlparse.parse() leads to a Denial of Service due to RecursionError.

Published: 2024-04-30 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-4340 is rated Moderate Risk (55.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.21%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-4340

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 10.88% 3.21% -7.67%
2 2026-06-01 12.40% 10.88% -1.52%
3 2026-05-04 — 12.40% —

Full EPSS history (31 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-4340

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2024-4340

GitHub Security Advisory for CVE-2024-4340

GHSA-2m57-hf25-phgg · Severity: high · Ecosystem: pip — sqlparse parsing heavily nested list leads to Denial of Service

OS Trackers for CVE-2024-4340

vendor priority summary link
debian not yet assigned CVE-2024-4340 not yet assigned priority: Debian including 1 source packages (sqlparse), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-4340
redhat medium — https://access.redhat.com/security/cve/CVE-2024-4340
suse high CVE-2024-4340 severity important: SUSE including 2 source package names (python3-sqlparse-0.4.2-150300.12.1, python311-sqlparse-0.4.4-150400.6.7.1), 20 product×package rows across 18 product lines (SUSE Enterprise Storage 7.1, SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS, … (18 product lines)): Fixed 20. https://www.suse.com/security/cve/CVE-2024-4340/
ubuntu medium CVE-2024-4340 medium priority: Ubuntu including 1 source packages (sqlparse), 7 status rows across 7 suites (bionic, focal, jammy, mantic, noble, upstream, xenial): released 4, not-affected 3. https://ubuntu.com/security/CVE-2024-4340

Affected software / configurations for CVE-2024-4340

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2024-4340

cvelogic Threat Intelligence