CVE-2026-11873
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Red Hat Certificate System 9
PublishedSep 1, 2026
First seenSep 1, 2026
Weakness typeCWE-209CWE-209
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Certificate System 9 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 8 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 9 | No range specified | — |
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