CVE-2024-22362Network attack vector

Unauthenticated service interruption via structural-element mishandling

Published Jan 16, 2024 · Updated Jun 20, 2025

Improper structural-element handling in Drupal core 9.3.6 allows remote attackers to interrupt the service via network requests. Drupal and JPCERT/CC have not published the affected parser, request structure, or incorrect code operation that exhausts resources. No authentication or user interaction is required; the documented consequence is reduced availability, and Drupal could not reproduce it in 9.5.x or 10.x.

CVSS severity5.3
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper structural-element handling in Drupal core 9.3.6 allows remote attackers to interrupt the service via network requests. Drupal and JPCERT/CC have not published the affected parser, request structure, or incorrect code operation that exhausts resources. No authentication or user interaction is required; the documented consequence is reduced availability, and Drupal could not reproduce it in 9.5.x or 10.x.

The record

CVE
CVE-2024-22362
Published
Jan 16, 2024
Updated
Jun 20, 2025
Vendor
OAuth.js
Product
Drupal core
Classifications
CWE-237, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 20, 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?

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

  1. Affected versionversion=prior to 9.5.x

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OAuth.js · Drupal coreversion=prior to 9.5.x

Published CVSS scores

5.3JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.0JPCERT/CCAV:N/AC:L/Au:N/C:N/I:N/A:P

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.

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

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-237Improper Handling of Structural Elements
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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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