CVE-2023-0923

Cross-namespace file disclosure via unauthenticated Jupyter API

Published Sep 15, 2023 · Updated Aug 2, 2024

Missing authorization in Red Hat OpenShift Data Science 1.22 allows remote attackers to read notebook files through the Jupyter API. The Kubernetes notebook service accepts Jupyter API requests from pods in other namespaces or applications without enforcing authorization. Reachability requires network access from another cluster workload, and successful requests expose file contents or invoke other permitted Jupyter API operations.

CVSS severity8.8
High
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Red Hat OpenShift Data Science 1.22 allows remote attackers to read notebook files through the Jupyter API. The Kubernetes notebook service accepts Jupyter API requests from pods in other namespaces or applications without enforcing authorization. Reachability requires network access from another cluster workload, and successful requests expose file contents or invoke other permitted Jupyter API operations.

The record

CVE
CVE-2023-0923
Published
Sep 15, 2023
Updated
Aug 2, 2024
Vendor
Red Hat
Product
Red Hat OpenShift Data Science
Classifications
CWE-862, T1005
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Red Hat · Red Hat OpenShift Data ScienceAffected versions are unavailable in this record.

Published CVSS scores

8.8Red Hat, Inc.CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1005Data from Local System

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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