CVE-2026-92822
Libmodulemd: libmodulemd: unbounded recursion when parsing nested xmd yaml
Monitor this CVE ↗Full CVE monitoring on Pro and Business
What happened?
A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.
Affected software and versions
| Software | Version information | Fixed version |
|---|---|---|
| libmodulemdRed Hat | Default status: affected | See vendor advisory |
| libmodulemdRed Hat | Default status: affected | See vendor advisory |
| libmodulemdRed Hat | Default status: affected | See vendor advisory |
| libmodulemdRed Hat | Default status: affected | See vendor advisory |
| rhoai/odh-ai-gateway-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-core-bff-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-dashboard-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-dashboard-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-data-science-pipelines-operator-controller-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-kf-notebook-controller-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-kserve-controller-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-kserve-llmisvc-controller-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-kserve-module-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-kuberay-operator-controller-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-kube-rbac-proxy-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-llama-stack-k8s-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-maas-controller-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-mlflow-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-mlflow-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-mod-arch-agent-ops-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-mod-arch-automl-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-mod-arch-autorag-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-mod-arch-eval-hub-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-mod-arch-gen-ai-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-mod-arch-maas-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-mod-arch-mlflow-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-mod-arch-model-registry-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-model-controller-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-model-registry-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-model-serving-api-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-notebook-controller-rhel9Red Hat | Default status: unknown | See vendor advisory |
| rhoai/odh-ogx-k8s-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-ogx-module-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-training-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-trustyai-service-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| rhoai/odh-workbenches-operator-rhel9Red Hat | Default status: unaffected | See vendor advisory |
| openshift/ose-rhel-coreos-8Red Hat | Default status: affected | See vendor advisory |
| openshift/ose-rhel-coreos-9Red Hat | Default status: affected | See vendor advisory |
| openshift/ose-rhel-coreos-9Red Hat | Default status: affected | See vendor advisory |
Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.
Is it being exploited?
This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.
How to respond
- Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
- Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
- Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.