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Dogtag CA CVE-2026-11873

| EUVDEUVD-2026-69037 MEDIUM
Error Message Information Leak (CWE-209)
2026-09-01 redhat GHSA-q8f6-8cj7-hxqf
Apache Information Disclosure Denial Of Service Java Red Hat Enterprise Linux 10 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 9
6.5
CVSS 3.1 · Vendor: redhat
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Severity by source

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

Network-reachable unauthenticated REST endpoint justifies AV:N/PR:N; stack trace leakage yields C:L; log-amplification disk exhaustion yields A:L with no integrity or scope change.

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

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
Low

Lifecycle Timeline

2
Analysis Generated
Sep 01, 2026 - 12:36 vuln.today
CVE Published
Sep 01, 2026 - 11:54 nvd
MEDIUM 6.5

DescriptionCVE.org

An Apache-proxied Dogtag CA REST endpoint exposed by IdM (POST /ca/rest/certrequests) returns HTTP 500 with internal Java stack traces for unauthenticated malformed requests. The same unauthenticated error path emits large multi-line stack traces into the CA debug log, creating a log-amplification resource exhaustion vector (disk growth and I/O contention) without requiring authentication.

AnalysisAI

Unauthenticated network attackers can elicit Java stack traces from Red Hat IdM's Dogtag CA REST enrollment endpoint (POST /ca/rest/certrequests) by submitting malformed requests, causing HTTP 500 responses that expose internal implementation details under CWE-209. The same error path simultaneously amplifies the CA debug log with large multi-line stack traces, creating a log-fill resource exhaustion vector that drives disk growth and I/O contention on affected RHEL 6 through 10 deployments. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation The Dogtag CA subsystem must be installed and running as part of an IdM deployment on RHEL 6-10; RHEL systems without IdM, or IdM configured with an external CA, are not affected. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 6.5 Medium score reflects two distinct but coupled impact planes: AV:N/AC:L/PR:N/UI:N indicates a trivially reachable, unauthenticated attack surface, while C:L captures reconnaissance value from stack trace exposure and A:L captures service degradation from log amplification. … 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 Monitor https://access.redhat.com/security/cve/CVE-2026-11873 for patched pki-ca and ipa package releases, as no specific fix version has been confirmed in available input data. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-11873 vulnerability details – vuln.today
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