CVE-2025-57328Public exploitNetwork attack vector

Service interruption via unchecked __proto__ array index

Published Sep 24, 2025 · Updated Sep 24, 2025

Prototype pollution in toggle-array 1.0.1 and earlier allows remote attackers to interrupt a service through a crafted array index. The enable and disable paths use the caller-controlled index to select an element and assign a caller-controlled property without rejecting proto, allowing the assignment to reach Object.prototype. Exploitation requires a consuming application to pass attacker-controlled object, index, and property data into either API; successful pollution changes inherited properties and can deny service.

CVSS severity7.5
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Prototype pollution in toggle-array 1.0.1 and earlier allows remote attackers to interrupt a service through a crafted array index. The enable and disable paths use the caller-controlled index to select an element and assign a caller-controlled property without rejecting proto, allowing the assignment to reach Object.prototype. Exploitation requires a consuming application to pass attacker-controlled object, index, and property data into either API; successful pollution changes inherited properties and can deny service.

The record

CVE
CVE-2025-57328
Published
Sep 24, 2025
Updated
Sep 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1321, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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