TensorFlowGHSA-2p9q-h29j-3f5v

Missing validation causes `TensorSummaryV2` to crash

CVE-2022-29193 · Published May 24, 2022 · updated Jul 13, 2026

Medium5.5

Fix: upgrade to 2.6.4 or later (3 fixed versions below)

Impact

The implementation of [tf.raw_ops.TensorSummaryV2](https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/core/kernels/summary_tensor_op.cc#L33-L58) does not fully validate the input arguments. This results in a CHECK-failure which can be used to trigger a denial of service attack:

```python

import numpy as np

import tensorflow as tf

tf.raw_ops.TensorSummaryV2(

tag=np.array('test'),

tensor=np.array(3),

serialized_summary_metadata=tf.io.encode_base64(np.empty((0))))

The code assumes axis is a scalar but there is no validation for this.

```cc

const Tensor& serialized_summary_metadata_tensor = c->input(2);

// ...

ParseFromTString(serialized_summary_metadata_tensor.scalar<tstring>()(),

v->mutable_metadata());

Patches

We have patched the issue in GitHub commit [290bb05c80c327ed74fae1d089f1001b1e2a4ef7](https://github.com/tensorflow/tensorflow/commit/290bb05c80c327ed74fae1d089f1001b1e2a4ef7).

The fix will be included in TensorFlow 2.9.0. We will also cherrypick this commit on TensorFlow 2.8.1, TensorFlow 2.7.2, and TensorFlow 2.6.4, as these are also affected and still in supported range.

For more information

Please consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and...

Affected versions

Package	Affected	Fixed in
tensorflow PyPI	< 2.6.4	2.6.4
	>= 2.7.0, < 2.7.2	2.7.2
	>= 2.8.0, < 2.8.1	2.8.1

Details and references

### Impact The implementation of [`tf.raw_ops.TensorSummaryV2`](https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/core/kernels/summary_tensor_op.cc#L33-L58) does not fully validate the input arguments. This results in a `CHECK`-failure which can be used to trigger a denial of service attack: ```python import numpy as np import tensorflow as tf tf.raw_ops.TensorSummaryV2( tag=np.array('test'), tensor=np.array(3), serialized_summary_metadata=tf.io.encode_base64(np.empty((0)))) ``` The code assumes `axis` is a scalar but there is no validation for this. ```cc const Tensor& serialized_summary_metadata_tensor = c->input(2); // ... ParseFromTString(serialized_summary_metadata_tensor.scalar<tstring>()(), v->mutable_metadata()); ``` ### Patches We have patched the issue in GitHub commit [290bb05c80c327ed74fae1d089f1001b1e2a4ef7](https://github.com/tensorflow/tensorflow/commit/290bb05c80c327ed74fae1d089f1001b1e2a4ef7). The fix will be included in TensorFlow 2.9.0. We will also cherrypick this commit on TensorFlow 2.8.1, TensorFlow 2.7.2, and TensorFlow 2.6.4, as these are also affected and still in supported range. ### For more information Please consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions. ### Attribution This vulnerability has been reported by Neophytos Christou from Secure Systems Lab at Brown University and Hong Jin from Singapore Management University.

CVSS 3.1: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity from: GitHub (reviewed advisory)
Weakness: CWE-20
Also known as: BIT-tensorflow-2022-29193, CVE-2022-29193, PYSEC-2026-3087, PYSEC-2026-3265, PYSEC-2026-942

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