Description
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.
Published: 2026-09-01
Score: 6.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Make the CA REST API fail safely by checking authentication early and returning simple 4xx errors for malformed requests without stack traces, and tune exception handling and logging so attacker-controlled input cannot spam large stack-trace logs (rate-limit/truncate).

Tracking

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Advisories

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History

Tue, 01 Sep 2026 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat certificate System
CPEs cpe:/a:redhat:certificate_system:9
Vendors & Products Redhat certificate System

Tue, 01 Sep 2026 12:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Pki-core: dogtag-pki: empty request to dogtag /ca/rest/certrequests causes http 500, java exception, and stacktrace disclosure
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-209
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}


Subscriptions

Redhat Certificate System Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-01T12:47:10.419Z

Reserved: 2026-06-10T12:24:05.399Z

Link: CVE-2026-11873

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-01T12:17:35.300

Modified: 2026-09-01T13:18:07.957

Link: CVE-2026-11873

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses