Red HatCVE-2026-11873
Red Hat Certificate System 9: resource exhaustion
Medium6.5CVE-2026-11873 · Published Sep 1, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Certificate System 9 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 6 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-209
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 1 | Red Hat Ansible Automation Platform: missing authorization | Medium6.4 | No fix yet |
| Sep 1 | Red Hat SFTP backend: uninitialized resource | Medium4.3 | 1.60.2 |
| Sep 1 | Red Hat SFTP backend: denial of service | High8.8 | 1.60.2 |
| Sep 1 | Red Hat AFP backend: denial of service | Medium6.5 | 1.60.2 |
| Sep 1 | Red Hat MTP backend: denial of service | Medium4.3 | 1.60.2 |
| Sep 1 | Red Hat pulpcore: cross-site scripting | Medium5.4 | No fix yet |