cronvel tree-kit up to 0.6.x prototype pollution

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as problematic has been found in cronvel tree-kit up to 0.6.x. This affects an unknown part. The manipulation with an unknown input leads to a prototype pollution vulnerability. CWE is classifying the issue as CWE-1321. The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 12/25/2022 as a63f559c50d70e8cb2eaae670dec25d1dbc4afcd. The advisory is shared at This vulnerability is uniquely identified as CVE-2021-4278. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

Upgrading to version 0.7.0 eliminates this vulnerability. The upgrade is hosted for download at Applying the patch a63f559c50d70e8cb2eaae670dec25d1dbc4afcd is able to eliminate this problem. The bugfix is ready for download at The best possible mitigation is suggested to be upgrading to the latest version.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (VulDB): 🔍



VulDB Base Score: 🔍
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Class: Prototype pollution
CWE: CWE-1321 / CWE-94 / CWE-74
ATT&CK: T1059

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: tree-kit 0.7.0
Patch: a63f559c50d70e8cb2eaae670dec25d1dbc4afcd


12/25/2022 🔍
12/25/2022 +0 days 🔍
12/25/2022 +0 days 🔍
01/24/2023 +30 days 🔍


Advisory: a63f559c50d70e8cb2eaae670dec25d1dbc4afcd
Status: Confirmed

CVE: CVE-2021-4278 (🔍)


Created: 12/25/2022 04:57 PM
Updated: 01/24/2023 09:26 AM
Changes: 12/25/2022 04:57 PM (42), 01/24/2023 09:23 AM (2), 01/24/2023 09:26 AM (21)
Complete: 🔍


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