CVE-2022-42966

Exponential ReDoS in cleo leads to denial of service

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Published Nov 9, 2022 CVSS 3.1 · 5.9 Medium EPSS 1.2% KEV · Not listed

Description

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the cleo PyPI package, when an attacker is able to supply arbitrary input to the Table.set_rows method

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

cleo

cleo

unaffected

Version	Status	Constraints
`0`	affected	< 1.0.0

Configuration 1 [-]

cpe:2.3:a:python-poetry:cleo:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2022-7199	An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the cleo PyPI package, when an attacker is able to supply arbitrary input to the Table.set_rows method
Github GHSA	GHSA-2p9h-ccw7-33gf	cleo is vulnerable to Regular Expression Denial of Service (ReDoS)

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 1.2% (1.165% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://research.jfrog.com/vulnerabilities/cleo-redos-xray-257186/

History

May 1, 2025 8:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Python-poetry Cleo

Weaknesses

CWE-1333

Sources

CVE record Updated: May 1, 2025, 7:18 PM

Status: PUBLISHED
Assigner: JFROG
Published: Nov 9, 2022, 12:00 AM
Updated: May 1, 2025, 7:18 PM
Reserved: Oct 15, 2022, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 3, 2024, 1:19 PM

Updated: Aug 3, 2024, 1:19 PM

NVD Updated: Jun 17, 2026, 5:05 AM

Status: Analyzed
Published: Nov 9, 2022, 8:15 PM
Modified: Jun 17, 2026, 5:05 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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