{"id":"CVE-2026-1484","title":"Glib: integer overflow leading to buffer underflow and out-of-bounds write in glib g_base64_encode()","summary":"A flaw was found in the GLib Base64 encoding routine when processing very large input data. Due to incorrect use of integer types during length calculation, the library may miscalculate buffer boundaries. This can cause memory writes out…","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L","cvssSource":"cna","cwe":["CWE-787"],"vendor":"Red Hat","product":"bootc","affected":["bootc (all versions)","glib2 (all versions)","glycin-loaders (all versions)","loupe (all versions)","mingw-glib2 (all versions)","papers (all versions)","rpm-ostree (all versions)","glib2 (all versions)","glib2 (all versions)","glib2 (all versions)","librsvg2 (all versions)","mingw-glib2 (all versions)","bootc (all versions)","glib2 (all versions)","librsvg2 (all versions)","mingw-glib2 (all versions)","rhoai/odh-ai-gateway-operator-rhel9","rhoai/odh-core-bff-rhel9","rhoai/odh-dashboard-operator-rhel9","rhoai/odh-dashboard-rhel9","rhoai/odh-data-science-pipelines-operator-controller-rhel9","rhoai/odh-kf-notebook-controller-rhel9","rhoai/odh-kserve-controller-rhel9","rhoai/odh-kserve-llmisvc-controller-rhel9","rhoai/odh-kserve-module-operator-rhel9","rhoai/odh-kuberay-operator-controller-rhel9","rhoai/odh-kube-rbac-proxy-rhel9","rhoai/odh-llama-stack-k8s-operator-rhel9","rhoai/odh-maas-controller-rhel9","rhoai/odh-mlflow-operator-rhel9","rhoai/odh-mlflow-rhel9","rhoai/odh-mod-arch-agent-ops-rhel9","rhoai/odh-mod-arch-automl-rhel9","rhoai/odh-mod-arch-autorag-rhel9","rhoai/odh-mod-arch-eval-hub-rhel9","rhoai/odh-mod-arch-gen-ai-rhel9","rhoai/odh-mod-arch-maas-rhel9","rhoai/odh-mod-arch-mlflow-rhel9","rhoai/odh-mod-arch-model-registry-rhel9","rhoai/odh-model-controller-rhel9","rhoai/odh-model-registry-operator-rhel9","rhoai/odh-model-serving-api-rhel9","rhoai/odh-notebook-controller-rhel9","rhoai/odh-ogx-k8s-operator-rhel9","rhoai/odh-ogx-module-operator-rhel9","rhoai/odh-training-operator-rhel9","rhoai/odh-trustyai-service-operator-rhel9","rhoai/odh-workbenches-operator-rhel9"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-01-27T15:11:56.910934Z"},"published":"2026-01-27","updated":"2026-11-06","sourceUpdated":"2026-11-06T07:51:41.152Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-1484","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-1484"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2433259","label":"RHBZ#2433259"},{"url":"https://gitlab.gnome.org/GNOME/glib/-/issues/3870"}],"tags":["cve.org"],"epss":0.00341,"epssPercentile":0.27788,"ingestedAt":"2026-11-05T22:38:31.375Z","slug":"CVE-2026-1484","body":"## Overview\n\nA flaw was found in the GLib Base64 encoding routine when processing very large input data. Due to incorrect use of integer types during length calculation, the library may miscalculate buffer boundaries. This can cause memory writes outside the allocated buffer. Applications that process untrusted or extremely large Base64 input using GLib may crash or behave unpredictably.\n\n## Affected\n\n- `bootc (all versions)`\n- `glib2 (all versions)`\n- `glycin-loaders (all versions)`\n- `loupe (all versions)`\n- `mingw-glib2 (all versions)`\n- `papers (all versions)`\n- `rpm-ostree (all versions)`\n- `glib2 (all versions)`\n- `glib2 (all versions)`\n- `glib2 (all versions)`\n- `librsvg2 (all versions)`\n- `mingw-glib2 (all versions)`\n- `bootc (all versions)`\n- `glib2 (all versions)`\n- `librsvg2 (all versions)`\n- `mingw-glib2 (all versions)`\n- `rhoai/odh-ai-gateway-operator-rhel9`\n- `rhoai/odh-core-bff-rhel9`\n- `rhoai/odh-dashboard-operator-rhel9`\n- `rhoai/odh-dashboard-rhel9`\n- `rhoai/odh-data-science-pipelines-operator-controller-rhel9`\n- `rhoai/odh-kf-notebook-controller-rhel9`\n- `rhoai/odh-kserve-controller-rhel9`\n- `rhoai/odh-kserve-llmisvc-controller-rhel9`\n- `rhoai/odh-kserve-module-operator-rhel9`\n- `rhoai/odh-kuberay-operator-controller-rhel9`\n- `rhoai/odh-kube-rbac-proxy-rhel9`\n- `rhoai/odh-llama-stack-k8s-operator-rhel9`\n- `rhoai/odh-maas-controller-rhel9`\n- `rhoai/odh-mlflow-operator-rhel9`\n- `rhoai/odh-mlflow-rhel9`\n- `rhoai/odh-mod-arch-agent-ops-rhel9`\n- `rhoai/odh-mod-arch-automl-rhel9`\n- `rhoai/odh-mod-arch-autorag-rhel9`\n- `rhoai/odh-mod-arch-eval-hub-rhel9`\n- `rhoai/odh-mod-arch-gen-ai-rhel9`\n- `rhoai/odh-mod-arch-maas-rhel9`\n- `rhoai/odh-mod-arch-mlflow-rhel9`\n- `rhoai/odh-mod-arch-model-registry-rhel9`\n- `rhoai/odh-model-controller-rhel9`\n- `rhoai/odh-model-registry-operator-rhel9`\n- `rhoai/odh-model-serving-api-rhel9`\n- `rhoai/odh-notebook-controller-rhel9`\n- `rhoai/odh-ogx-k8s-operator-rhel9`\n- `rhoai/odh-ogx-module-operator-rhel9`\n- `rhoai/odh-training-operator-rhel9`\n- `rhoai/odh-trustyai-service-operator-rhel9`\n- `rhoai/odh-workbenches-operator-rhel9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":23.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}