Redhat Hardened Images
CVE-2026-0992
A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.
What this means for your business
- It affects Redhat Hardened Images. It matters if your company, or a supplier that handles your data, runs it.
- Code showing how to exploit it has been published, but real attacks have not been confirmed.
- An attacker can use it only with access to the machine itself, without a login, and without anyone at your company clicking anything.
What to do
- 1Check whether your company or your suppliers run Redhat Hardened Images, and which version. The affected versions are listed further down this page.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
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Scoring
- CVSS
- 2.9 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L- Weakness
- CWE-400
- Assigned by
- secalert@redhat.com
Dates
- Published
- 2026-01-15
- Last modified
- 2026-09-01
- Sources
- NVD
Affected products
- Redhat Hardened Imagesall versions
- Redhat Jboss Core Servicesall versions
- Redhat Openshift Container Platform4.0
- Redhat Enterprise Linux6.0, 7.0, 8.0, 9.0, 10.0
- Ibm Vios4.1.0 - 4.1.1.30, 4.1.2.0
- Ibm Aix7.2.5 - 7.2.5.12, 7.3.2 - 7.3.3.3, 7.3.4
- Xmlsoft Libxml2- 2.15.2
As listed in the NVD configuration data. Not a statement about your estate.