CVE-2023-39196Network attack vector

Internal metadata disclosure via missing mutual TLS

Published Feb 7, 2024 · Updated Feb 13, 2025

Improper authentication in Apache Ozone 1.2.0 through 1.3.0 allows remote attackers to download internal SCM metadata. An internal Storage Container Manager service endpoint fails to require and validate a mutual TLS client certificate before returning metadata. Network access to that internal endpoint is sufficient; the response is read-only, excludes user data and exposes no metadata reported as sensitive.

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 authentication in Apache Ozone 1.2.0 through 1.3.0 allows remote attackers to download internal SCM metadata. An internal Storage Container Manager service endpoint fails to require and validate a mutual TLS client certificate before returning metadata. Network access to that internal endpoint is sufficient; the response is read-only, excludes user data and exposes no metadata reported as sensitive.

The record

CVE
CVE-2023-39196
Published
Feb 7, 2024
Updated
Feb 13, 2025
Vendor
The Apache Software Foundation
Product
Apache Ozone
Classifications
CWE-287, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=1.2.0 <=1.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Ozoneversion=1.2.0 <=1.3.0

Published CVSS scores

5.3Apache Software FoundationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1210Exploitation of Remote Services

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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