CVE-2026-92882Network attack vectorHinoki check available

Credential disclosure via unredacted configuration API responses

Published Sep 22, 2026 · Updated Sep 22, 2026

Credential exposure in Checkmk allows remote authenticated users to read stored device secrets through host-configuration REST API GET responses. The host and folder configuration endpoints serialized SNMP community strings, SNMPv3 authentication and privacy pass phrases, and IPMI passwords into response bodies instead of omitting them. The caller must be authenticated and allowed to view host configuration; exposure affects configured credentials in 2.2.0 and releases before 2.3.0p51, before 2.4.0p37, or before 2.5.0p15.

CVSS severityUnavailable
Unscored
EPSS probability0.35%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Credential exposure in Checkmk allows remote authenticated users to read stored device secrets through host-configuration REST API GET responses. The host and folder configuration endpoints serialized SNMP community strings, SNMPv3 authentication and privacy pass phrases, and IPMI passwords into response bodies instead of omitting them. The caller must be authenticated and allowed to view host configuration; exposure affects configured credentials in 2.2.0 and releases before 2.3.0p51, before 2.4.0p37, or before 2.5.0p15.

The record

CVE
CVE-2026-92882
Published
Sep 22, 2026
Updated
Sep 22, 2026
Vendor
Checkmk GmbH
Product
Checkmk
Classifications
T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 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=2.2.0
  2. Affected versionversion=2.3.0 <2.3.0p51
  3. Affected versionversion=2.4.0 <2.4.0p37
  4. Affected versionversion=2.5.0 <2.5.0p15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Checkmk GmbH · Checkmkversion=2.2.0; version=2.3.0 <2.3.0p51; version=2.4.0 <2.4.0p37; version=2.5.0 <2.5.0p15

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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