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Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects

🗓️ 27 Mar 2026 18:18:54Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 24 Views

CPU exhaustion DoS when serializing crafted array-like objects; patch uses Array.isArray and Object.keys; upgrade to seven point zero five.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Vulnerability in Serialize JavaScript affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.
22 Jun 202613:20
–ibm
IBM Security Bulletins		Security Bulletin: IBM Quantum Safe Remediator is affected by mutiple vulnerabilities
27 May 202615:56
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in IBM watsonx Orchestrate Developer Edition
12 Jun 202611:01
–ibm
IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities in IBM Aspera Faspex
16 Apr 202622:34
–ibm
IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container DesignerAuthoring operands are vulnerable to denial of service (CVE-2026-34043)
13 Apr 202610:06
–ibm
ATTACKERKB		CVE-2026-34043
31 Mar 202601:48
–attackerkb
Tenable Nessus		AlmaLinux 10 : .NET 8.0 (ALSA-2026:21286)
28 May 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : .NET 8.0 (ALSA-2026:21291)
28 May 202600:00
–nessus
Tenable Nessus		AlmaLinux 9 : .NET 8.0 (ALSA-2026:21293)
28 May 202600:00
–nessus
Tenable Nessus		MiracleLinux 8 : dotnet8.0-8.0.127-1.el8_10.ML.1 (AXSA:2026-756:09)
4 Jun 202600:00
–nessus
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Vulners
Node
verizonserialize-javascriptRange5.0.0–7.0.5npm

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21 May 2026 18:30Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.9 - 7.5
EPSS0.00472
SSVC
CWE-400CWE-834
Denial of ServiceCpu exhaustionSerialize JavaScriptarray like objectsprototype pollutionyaml deserialization
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