Bug 2517527 (CVE-2026-54284)

Summary:	CVE-2026-54284 sqlparse: sqlparse: Denial of Service via quadratic CPU consumption in SQL parsing
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	akhatavk, anthomas, aos-team-art-private, asdas, brasmith, cmyers, cochase, dnakabaa, dpaolell, dranck, dschmidt, eglynn, ehelms, ggainey, jdelft, jjoyce, jlanda, jmitchel, jpasqual, jpretori, jschluet, jupierce, juwatts, jwong, kaycoth, kshier, lbrazdil, lcouzens, lgarciaa, lhh, mbiarnes, mburns, mdellweg, mgarciac, mhulan, mminar, nmoumoul, omaciel, osousa, pcreech, ppalepu, ppostler, prdhamdh, rbiba, rchan, sghai, sidsharm, simaishi, smallamp, sskracic, stcannon, suppawar, teagle, tmalecek, tpfromme, ttakamiy, vlaad, yguenane
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in sqlparse, a Python module for parsing SQL. A remote attacker could exploit a vulnerability in the TokenList construction and string conversion processes, specifically when handling nested token subtrees. This flaw leads to quadratic CPU consumption, which can result in a Denial of Service (DoS) by exhausting system resources before internal limits are reached.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-08-17 18:02:58 UTC

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, TokenList construction and string conversion in sqlparse/sql.py repeatedly flatten nested token subtrees constructed by group_parenthesis and group_case, causing quadratic CPU consumption through sqlparse.parse(), sqlparse.format(), and sqlparse.split() before depth and token limits terminate processing. This issue is fixed in version 0.6.0.

Comment 1 Jon Orris 2026-09-23 20:42:47 UTC

This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.7 for RHEL 10
  Red Hat Ansible Automation Platform 2.7 for RHEL 9

Via RHSA-2026:71112 https://access.redhat.com/errata/RHSA-2026:71112

Comment 2 Jon Orris 2026-09-23 20:50:41 UTC

This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.6 for RHEL 10
  Red Hat Ansible Automation Platform 2.6 for RHEL 9

Via RHSA-2026:71113 https://access.redhat.com/errata/RHSA-2026:71113

Comment 3 Jon Orris 2026-09-23 21:07:30 UTC

This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.5 for RHEL 9
  Red Hat Ansible Automation Platform 2.5 for RHEL 8

Via RHSA-2026:71114 https://access.redhat.com/errata/RHSA-2026:71114

Comment 4 Jon Orris 2026-10-01 22:12:19 UTC

This issue has been addressed in the following products:

  Red Hat Satellite 6.18 for RHEL 9

Via RHSA-2026:74504 https://access.redhat.com/errata/RHSA-2026:74504

Comment 5 Jon Orris 2026-10-01 22:13:16 UTC

This issue has been addressed in the following products:

  Red Hat Satellite 6.17 for RHEL 9

Via RHSA-2026:74505 https://access.redhat.com/errata/RHSA-2026:74505

Comment 6 Jon Orris 2026-10-01 22:32:33 UTC

This issue has been addressed in the following products:

  Red Hat Satellite 6.16 for RHEL 8
  Red Hat Satellite 6.16 for RHEL 9

Via RHSA-2026:74506 https://access.redhat.com/errata/RHSA-2026:74506