CVE-2021-41532Network attack vector

Unauthenticated metadata disclosure via Recon endpoints

Published Nov 19, 2021 · Updated Aug 4, 2024

Apache Ozone before 1.2.0 allows remote attackers to read OM, SCM, and Datanode metadata through Recon HTTP endpoints. The Recon REST handlers fail to enforce authentication on metadata requests, so unauthenticated callers receive cluster information. The impact is confidentiality disclosure only; no modification or service interruption is described.

CVSS severity5.3
Medium
EPSS probability2.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Apache Ozone before 1.2.0 allows remote attackers to read OM, SCM, and Datanode metadata through Recon HTTP endpoints. The Recon REST handlers fail to enforce authentication on metadata requests, so unauthenticated callers receive cluster information. The impact is confidentiality disclosure only; no modification or service interruption is described.

The record

CVE
CVE-2021-41532
Published
Nov 19, 2021
Updated
Aug 4, 2024
Vendor
The Apache Software Foundation
Product
Apache Ozone
Classifications
CWE-200, T1213
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 19, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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=Everglades (1.1.0) <=1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Ozoneversion=Everglades (1.1.0) <=1.1.0

Published CVSS scores

5.3National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0National Vulnerability DatabaseAV:N/AC:L/Au:N/C:P/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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.

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Technologies

Your stack

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Your stack

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