CWE-1321 - Prototype Pollution - Cwe

Threat entity extracted from intelligence sources

Frequency
1
occurrences
First Seen
June 9, 2026
Last Seen
June 9, 2026

CWE-1321 - Prototype Pollution is a cwe tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.

CWE-1321 - Prototype Pollution is a cwe tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed June 9, 2026; most recent activity June 9, 2026.

Related Threat Clusters

  • Multiple Lodash Vulnerabilities Affecting Ubuntu Versions

    Multiple vulnerabilities in Lodash were discovered, affecting several Ubuntu LTS versions including 16.04, 18.04, 20.04, 22.04, 24.04, and 25.10. The vulnerabilities include a prototype pollution issue in the…

    2 articles · Updated June 9, 2026

Recent Intelligence Reports

  • Ubuntu 26.04 LTS Lodash Critical Prototype Pollution Vuln USN-8411 — Linuxsecurity · June 9, 2026

Related Entities

DDoS Ubuntu CVE-2020-28500 CVE-2020-8203 CVE-2021-23337 CVE-2025-13465 CVE-2026-2950 CVE-2026-4800 Cwe-400 - Uncontrolled Resource Consumption Prototype Pollution

Frequently asked questions

What is CWE-1321 - Prototype Pollution?

CWE-1321 - Prototype Pollution is a cwe tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.

Is CWE-1321 - Prototype Pollution still active?

The most recent intelligence report mentioning CWE-1321 - Prototype Pollution on ThreatCluster is dated June 9, 2026.

What is CWE-1321 - Prototype Pollution associated with?

Across ThreatCluster reporting, CWE-1321 - Prototype Pollution most frequently co-occurs with DDoS, Ubuntu, CVE-2020-28500, CVE-2020-8203, CVE-2021-23337, among 10 tracked related entities.

What are the latest developments involving CWE-1321 - Prototype Pollution?

The most significant recent cluster is “Multiple Lodash Vulnerabilities Affecting Ubuntu Versions” (2 articles · Updated June 9, 2026). CWE-1321 - Prototype Pollution appears across 1 threat cluster in total, listed above with sources.

How much reporting does ThreatCluster have on CWE-1321 - Prototype Pollution?

CWE-1321 - Prototype Pollution appears in 1 intelligence report mention across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.

CVSS v3.1 Breakdown