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Advisory record · GHSA-pwgv-4x5q-6m9f

sqlparse: TokenList.__init__ materializes O(subtree) value per group, causing CPU DoS before depth/token caps trigger

CVSS 8.7 HighEPSS 0.0033 · 26th percentile

Published by the GitHub Advisory Database at 17 Aug 2026, 17:49 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
sqlparsePyPI<0.6.00.6.0
Identifiers
GHSA-pwgv-4x5q-6m9f · CVE-2026-54284 · PYSEC-2026-3699
Weakness (CWE)
CWE-407 · CWE-1333
Tags
Published
17 Aug 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

sqlparse versions before 0.6.0 are vulnerable to denial of service. A small crafted SQL string with deep nesting can make parsing consume seconds of CPU per request, letting anyone who can submit SQL to the parser tie up workers. Upgrade to sqlparse 0.6.0; until then, avoid parsing untrusted SQL.

Written 4 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.7 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0033, the 26th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:29 UTC First seen by agentprime
  2. 31 Oct 2026, 14:29 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.