CVE-2026-65613Hinoki check available

Information disclosure and deletion via missing access control

Published Aug 21, 2026 · Updated Aug 21, 2026

Improper access control in Apache CloudStack allows attackers to list and delete webhook delivery records across affected accounts. The Webhook module's delivery-listing and deletion paths omit an undisclosed access-control operation in 4.20.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0. The required role and cross-account scope remain undisclosed; successful access exposes stored delivery information and permits its deletion.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper access control in Apache CloudStack allows attackers to list and delete webhook delivery records across affected accounts. The Webhook module's delivery-listing and deletion paths omit an undisclosed access-control operation in 4.20.0.0 through 4.20.3.0 and 4.21.0.0 through 4.22.1.0. The required role and cross-account scope remain undisclosed; successful access exposes stored delivery information and permits its deletion.

The record

CVE
CVE-2026-65613
Published
Aug 21, 2026
Updated
Aug 21, 2026
Vendor
The Apache Software Foundation
Product
Apache CloudStack
Classifications
CWE-284, CWE-200, T1213
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 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=4.20.0.0 <=4.20.3.0
  2. Affected versionversion=4.21.0.0 <=4.22.1.0

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Apache Software Foundation · Apache CloudStackversion=4.20.0.0 <=4.20.3.0; version=4.21.0.0 <=4.22.1.0

Published CVSS scores

No CVSS assessment is available in this record.

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

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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