CVE Tools
Sign in

CVE-2022-42966

Exponential ReDoS in cleo leads to denial of service

Published: Nov 9, 2022Updated: Mar 4, 2025 Sources: CVE List NVD GHSACWE-1333
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
0.9%
Top 44.8%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-1333

Affected Products

cleopython-poetry
Library
DevTools & CI / artifact-registry
cleocleo
Mixed
Enterprise Software / document-mgmt
cleoPyPIOSS Libraries
python-poetryoss-projectDevTools & CIaka poetry, cleo
cleocommercialEnterprise Softwareaka lexicom, cleo harmony, harmony
pypipackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://research.jfrog.com/vulnerabilities/cleo-redos-xray-257186/
research.jfrog.com
https://nvd.nist.gov/vuln/detail/CVE-2022-42966
nvd.nist.gov
https://github.com/python-poetry/cleo/pull/285
github.com
and 5 more references View all →

Timeline

Published
Nov 9, 2022
Last Updated
Mar 4, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2022-42966 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows