CVE-2026-95619
Gcc: libstdc++ integer overflow in `new` operator
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What happened?
A flaw was found in libstdc++. An integer overflow can occur when processing large inputs to the aligned operator new in the C++ library. This vulnerability could lead to an undersized memory allocation, potentially causing memory corruption or application instability.
Affected software and versions
| Software | Version information | Fixed version |
|---|---|---|
| gccRed Hat | unaffected: 0:8.5.0-30.el8_10 to < * | See vendor advisory |
| gccRed Hat | unaffected: 0:8.5.0-30.el8_10 to < * | See vendor advisory |
| gcc-mainRed Hat | unaffected: 16.2.1-2.hum1 to < * | See vendor advisory |
| gcc13-mainRed Hat | unaffected: 13.5.0-0.1.hum1 to < * | See vendor advisory |
| gccRed Hat | Default status: unaffected | See vendor advisory |
| mingw-gccRed Hat | Default status: unaffected | See vendor advisory |
| compat-gcc-295Red Hat | Default status: unaffected | See vendor advisory |
| compat-gcc-296Red Hat | Default status: unaffected | See vendor advisory |
| compat-gcc-32Red Hat | Default status: unaffected | See vendor advisory |
| compat-gcc-34Red Hat | Default status: unaffected | See vendor advisory |
| gccRed Hat | Default status: unaffected | See vendor advisory |
| compat-gcc-32Red Hat | Default status: unaffected | See vendor advisory |
| compat-gcc-34Red Hat | Default status: unaffected | See vendor advisory |
| compat-gcc-44Red Hat | Default status: unaffected | See vendor advisory |
| gccRed Hat | Default status: unaffected | See vendor advisory |
| mingw-gccRed Hat | Default status: affected | See vendor advisory |
| rteval-loadsRed Hat | Default status: affected | See vendor advisory |
| gccRed Hat | Default status: affected | See vendor advisory |
| mingw-gccRed 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 |
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.