WebReflection flatted up to 3.3.x JSON Parser parse recursion

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in WebReflection flatted up to 3.3.x. It has been classified as problematic. Affected by this issue is the function parse of the component JSON Parser. The manipulation leads to recursion. This vulnerability is uniquely identified as CVE-2026-32141. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in WebReflection flatted up to 3.3.x. It has been rated as problematic. This issue affects the function parse of the component JSON Parser. The manipulation with an unknown input leads to a recursion vulnerability. Using CWE to declare the problem leads to CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. Impacted is availability. The summary by CVE is:

flatted is a circular JSON parser. Prior to 3.4.0, flatted's parse() function uses a recursive revive() phase to resolve circular references in deserialized JSON. When given a crafted payload with deeply nested or self-referential $ indices, the recursion depth is unbounded, causing a stack overflow that crashes the Node.js process. This vulnerability is fixed in 3.4.0.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-32141 since 03/10/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 302061 (Linux Distros Unpatched Vulnerability : CVE-2026-32141), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.4.0 eliminates this vulnerability. Applying the patch 7eb65d857e1a40de11c47461cdbc8541449f0606 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (302061). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Recursion
CWE: CWE-674 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 302061
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-32141

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: flatted 3.4.0
Patch: 7eb65d857e1a40de11c47461cdbc8541449f0606

Timelineinfo

03/10/2026 CVE reserved
03/12/2026 +2 days Advisory disclosed
03/12/2026 +0 days VulDB entry created
03/17/2026 +5 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-25h7-pfq9-p65f
Status: Confirmed

CVE: CVE-2026-32141 (🔒)
GCVE (CVE): GCVE-0-2026-32141
GCVE (VulDB): GCVE-100-350747

Entryinfo

Created: 03/12/2026 19:33
Updated: 03/17/2026 08:40
Changes: 03/12/2026 19:33 (67), 03/15/2026 02:51 (1), 03/17/2026 08:40 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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