A vulnerability in the TFSMLayer class of the keras package, version 3.13.0, allows attacker-controlled TensorFlow SavedModels to be loaded during deserialization of .keras models, even when safe_mode=True. This bypasses the security guarantees of safe_mode and enables arbitrary attacker-controlled code execution during model inference under the victims privileges. The issue arises due to the unconditional loading of external SavedModels, serialization of attacker-controlled file paths, and the lack of validation in the from_config() method.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Keras | Keras | 3.13.0 (including) | 3.13.0 (including) |
| Red Hat OpenShift AI 2.25 | RedHat | rhoai/odh-modelmesh-runtime-adapter-rhel9:1780394782 | * |
| Red Hat OpenShift AI 3.3 | RedHat | rhoai/odh-pipeline-runtime-tensorflow-cuda-py312-rhel9:1782471734 | * |
| Red Hat OpenShift AI 3.3 | RedHat | rhoai/odh-pipeline-runtime-tensorflow-rocm-py312-rhel9:1782471879 | * |
| Red Hat OpenShift AI 3.3 | RedHat | rhoai/odh-workbench-jupyter-tensorflow-cuda-py312-rhel9:1782471730 | * |
| Red Hat OpenShift AI 3.3 | RedHat | rhoai/odh-workbench-jupyter-tensorflow-rocm-py312-rhel9:1782471835 | * |
Potential Mitigations
- Make fields transient to protect them from deserialization.
- An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Related Attack Patterns
References
- https://github.com/keras-team/keras/commit/b6773d3decaef1b05d8e794458e148cb362f163f
- https://huntr.com/bounties/7e78d6f1-6977-4300-b595-e81bdbda331c
- https://access.redhat.com/errata/RHSA-2026:24977
- https://access.redhat.com/errata/RHSA-2026:37275
- https://access.redhat.com/security/cve/CVE-2026-1462
- https://bugzilla.redhat.com/show_bug.cgi?id=2457856
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1462.json