CVE-2022-48318Network attack vector

Information disclosure via unauthenticated REST API documentation

Published Feb 20, 2023 · Updated Mar 12, 2025

Missing authorization in Checkmk 2.0.0 through 2.0.0p29 and 2.1.0 through 2.1.0p13 allows remote attackers to read REST API documentation. The documentation endpoint serves automatically generated REST API pages without checking for an authenticated session, including custom user tags and comments. Network access to a Checkmk site's web interface is sufficient; exposure is limited to information rendered in those documentation pages.

CVSS severity5.3
Medium
EPSS probability0.49%
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 Checkmk 2.0.0 through 2.0.0p29 and 2.1.0 through 2.1.0p13 allows remote attackers to read REST API documentation. The documentation endpoint serves automatically generated REST API pages without checking for an authenticated session, including custom user tags and comments. Network access to a Checkmk site's web interface is sufficient; exposure is limited to information rendered in those documentation pages.

The record

CVE
CVE-2022-48318
Published
Feb 20, 2023
Updated
Mar 12, 2025
Vendor
Checkmk GmbH
Product
Checkmk
Classifications
CWE-862
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 12, 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=2.0.0 <=2.0.0p29
  2. Affected versionversion=2.1.0 <=2.1.0p13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Checkmk GmbH · Checkmkversion=2.0.0 <=2.0.0p29; version=2.1.0 <=2.1.0p13

Published CVSS scores

5.3Checkmk GmbHCVSS: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-862Missing Authorization

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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