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Red Hat Certificate System CVE-2026-53682

| EUVDEUVD-2026-69056 MEDIUM
Information Exposure (CWE-200)
2026-09-01 redhat GHSA-cvf8-gvvm-fg6c
5.3
CVSS 3.1 · Vendor: redhat
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Severity by source

Vendor (redhat) PRIMARY
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vuln.today AI
5.3 MEDIUM

REST endpoint is network-reachable with no authentication required; impact is limited to partial confidentiality - internal PKI topology only, no integrity or availability effect.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Red Hat
5.3 MEDIUM
qualitative

Primary rating from Vendor (redhat).

CVSS VectorVendor: redhat

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Sep 01, 2026 - 13:01 vuln.today
CVE Published
Sep 01, 2026 - 12:37 cve.org
MEDIUM 5.3

DescriptionCVE.org

An unauthenticated client can query the Security Domain hosts inventory via GET /ca/rest/securityDomain/hosts and receive a structured response enumerating internal PKI/CA hosts and roles (security domain topology and participating subsystems), without requiring a principal, client certificate, or session.

AnalysisAI

Unauthenticated enumeration of internal PKI topology is possible in Red Hat Certificate System 9 through an unprotected REST endpoint. Any network-accessible client can issue GET /ca/rest/securityDomain/hosts and receive a structured inventory of all participating CA subsystem hosts, their roles, and security domain membership - without presenting credentials, a client certificate, or a session token. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation No authentication is required - the CVSS vector PR:N confirms exploitation without credentials, client certificate, or session token of any kind. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 5.3 (Medium) with vector AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N accurately reflects the constrained direct impact: network-accessible, trivially exploitable, but limited to partial confidentiality loss with no integrity or availability consequences. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Consult the Red Hat security advisory at https://access.redhat.com/security/cve/CVE-2026-53682 for the official patch once released; no specific fixed version has been confirmed in the available data. … Detailed patch versions, workarounds, and compensating controls in full report.

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Vendor StatusVendor

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CVE-2026-53682 vulnerability details – vuln.today

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