CVE-2026-97363Network attack vector

Charging-service disruption via unthrottled WebSocket authentication

Published Oct 2, 2026 · Updated Oct 2, 2026

Excessive authentication requests to the WebSocket API in Monta monta.app allow remote attackers to disrupt charging services. The OCPP backend accepts repeated authentication attempts without sufficient request limits, permitting rapid retries against charging-station identifiers. The endpoint must be reachable over the network; CISA describes brute-force access as a possible outcome but does not establish account takeover from this flaw alone.

CVSS severity7.5
High
EPSS probability0.32%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Excessive authentication requests to the WebSocket API in Monta monta.app allow remote attackers to disrupt charging services. The OCPP backend accepts repeated authentication attempts without sufficient request limits, permitting rapid retries against charging-station identifiers. The endpoint must be reachable over the network; CISA describes brute-force access as a possible outcome but does not establish account takeover from this flaw alone.

The record

CVE
CVE-2026-97363
Published
Oct 2, 2026
Updated
Oct 2, 2026
Vendor
Monta
Product
Monta Charge
Classifications
CWE-307, T1110, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Monta · Monta Chargeversion=All versions

Published CVSS scores

7.5CISACVSS: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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110Brute Force
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

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