CVE Feed

    Dashboard / CVE / CVE-2021-37678

    CVE-2021-37678

    TensorFlow is an end-to-end open source platform for machine learning. In affected versions TensorFlow and Keras can be tricked to perform arbitrary code execution when deserializing a Keras model from YAML format. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/python/keras/saving/model_config.py#L66-L104) uses `yaml.unsafe_load` which can perform arbitrary code execution on the input. Given that YAML format support requires a significant amount of work, we have removed it for now. We have patched the issue in GitHub commit 23d6383eb6c14084a8fc3bdf164043b974818012. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.

    Published:Aug 12, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 12, 2021
    EPSS Score:0.01023
    CVSS Score:9.3

    Affected Products

    Vendor
    Google
    Product
    Tensorflow

    Exploits

    https://github.com/fran-CICS/ExploitTensorflowCVE-2021-37678

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    Related CVEs

    CVE-2025-55559 (CVSS 7.5) — An issue was discovered TensorFlow v2.18.0. A Denial of Service (DoS) occurs when padding is set to 'valid' in…
    CVE-2025-55556 (CVSS 6.5) — TensorFlow v2.18.0 was discovered to output random results when compiling Embedding, leading to unexpected beh…
    CVE-2023-33976 (CVSS 7.5) — TensorFlow is an end-to-end open source platform for machine learning. `array_ops.upper_bound` causes a segfau…
    CVE-2023-25661 (CVSS 6.5) — TensorFlow is an Open Source Machine Learning Framework. In versions prior to 2.11.1 a malicious invalid input…
    CVE-2023-25660 (CVSS 7.5) — TensorFlow is an open source platform for machine learning. Prior to versions 2.12.0 and 2.11.1, when the para…
    CVE-2023-25659 (CVSS 7.5) — TensorFlow is an open source platform for machine learning. Prior to versions 2.12.0 and 2.11.1, if the parame…
    CVE-2023-25658 (CVSS 7.5) — TensorFlow is an open source platform for machine learning. Prior to versions 2.12.0 and 2.11.1, an out of bou…
    CVE-2023-25662 (CVSS 7.5) — TensorFlow is an open source platform for machine learning. Versions prior to 2.12.0 and 2.11.1 are vulnerable…
    CVE-2023-25663 (CVSS 7.5) — TensorFlow is an open source platform for machine learning. Prior to versions 2.12.0 and 2.11.1, when `ctx->st…
    CVE-2023-25664 (CVSS 7.5) — TensorFlow is an open source platform for machine learning. Prior to versions 2.12.0 and 2.11.1, there is a he…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High