Insecure temporary file in Tensorflow

ImpactIn multiple places, TensorFlow uses tempfile.mktemp to create temporary files. While this is acceptable in testing, in utilities and libraries it is dangerous as a different process can create the file between the check for the filename in mktemp and the actual creation of the file by a...

Division by zero in Tensorflow

Impact The estimator for the cost of some convolution operations can be made to execute a division by 0:pythonimport tensorflow as [email protected] test: y=tf.rawops.AvgPoolGrad originputshape=1,1,1,1, grad=1.0,1.0,1.0,2.0,2.0,2.0,3.0,3.0,3.0, ksize=1,1,1,1, strides=1,1,1,0, padding='VALID',...

Memory exhaustion in Tensorflow

Impact The implementation of ThreadPoolHandle can be used to trigger a denial of service attack by allocating too much memory:pythonimport tensorflow as tfy = tf.rawops.ThreadPoolHandlenumthreads=0x60000000,displayname='tf'This is because the numthreads argument is only checked to not be negative...

Memory exhaustion in Tensorflow

Impact The implementation of StringNGrams can be used to trigger a denial of service attack by causing an OOM condition after an integer overflow:pythonimport tensorflow as tftf.rawops.StringNGrams data='123456', datasplits=0,1, separator='a'15, ngramwidths=, leftpad='', rightpad='', padwidth=-5,...

Reachable Assertion in Tensorflow

ImpactWhen decoding a resource handle tensor from protobuf, a TensorFlow process can encounter cases where a CHECK assertion is invalidated based on user controlled arguments. This allows attackers to cause denial of services in TensorFlow processes. PatchesWe have patched the issue in GitHub...

Use after free in `DecodePng` kernel

ImpactA malicious user can cause a use after free behavior when decoding PNG images:ccif / ... error conditions ... / png::CommonFreeDecode; OPREQUIREScontext, false, errors::InvalidArgument"PNG size too large for int: ", decode.width, " by ", decode.height; After png::CommonFreeDecode gets calle...

PYSEC-2026-3139 Reachable Assertion in Tensorflow

Impact When decoding a resource handle tensor from protobuf, a TensorFlow process can encounter cases where a CHECK assertion is invalidated based on user controlled arguments. This allows attackers to cause denial of services in TensorFlow processes. Patches We have patched the issue in GitHub...

PYSEC-2026-3187 `CHECK`-failures in Tensorflow

Impact The implementation of MapStage is vulnerable a CHECK-fail if the key tensor is not a scalar: python import tensorflow as tf import numpy as np tf.rawops.MapStage key = tf.constantvalue=4, shape= 1,2, dtype=tf.int64, indices = np.array6, values = np.array-60, dtypes = tf.int64, capacity=0,...

PYSEC-2026-3253 Insecure temporary file in Tensorflow

Impact In multiple places, TensorFlow uses tempfile.mktemp to create temporary files. While this is acceptable in testing, in utilities and libraries it is dangerous as a different process can create the file between the check for the filename in mktemp and the actual creation of the file by a...

Type confusion leading to segfault in Tensorflow

Impact The implementation of shape inference for ConcatV2 can be used to trigger a denial of service attack via a segfault caused by a type confusion:pythonimport tensorflow as [email protected] test: y = tf.rawops.ConcatV2 values=1,2,3,4,5,6, axis = 0xb500005b return ytestThe axis argument is...

Overflow and uncaught divide by zero in Tensorflow

Impact The implementation of UnravelIndex is vulnerable to a division by zero caused by an integer overflow bug:pythonimport tensorflow as tftf.rawops.UnravelIndexindices=-0x100000,dims=0x100000,0x100000 PatchesWe have patched the issue in GitHub commit 58b34c6c8250983948b5a781b426f6aa01fd47af. T...

PYSEC-2026-3158 Memory exhaustion in Tensorflow

Impact The implementation of ThreadPoolHandle can be used to trigger a denial of service attack by allocating too much memory: python import tensorflow as tf y = tf.rawops.ThreadPoolHandlenumthreads=0x60000000,displayname='tf' This is because the numthreads argument is only checked to not be...

`CHECK`-failures in Tensorflow

Impact The implementation of MapStage is vulnerable a CHECK-fail if the key tensor is not a scalar:pythonimport tensorflow as tfimport numpy as nptf.rawops.MapStage key = tf.constantvalue=4, shape= 1,2, dtype=tf.int64, indices = np.array6, values = np.array-60, dtypes = tf.int64, capacity=0,...

Out of bounds write in Tensorflow

ImpactTensorFlow is vulnerable to a heap OOB write in Grappler:ccStatus SetUnknownShapeconst NodeDef node, int outputport shapeinference::ShapeHandle shape = GetUnknownOutputShapenode, outputport; InferenceContext ctx = GetContextnode; if ctx == nullptr return errors::InvalidArgument"Missing...

PYSEC-2026-3090 Overflow and uncaught divide by zero in Tensorflow

Impact The implementation of UnravelIndex is vulnerable to a division by zero caused by an integer overflow bug: python import tensorflow as tf tf.rawops.UnravelIndexindices=-0x100000,dims=0x100000,0x100000 Patches We have patched the issue in GitHub commit 58b34c6c8250983948b5a781b426f6aa01fd47a...

Read and Write outside of bounds in TensorFlow

ImpactAn attacker can craft a TFLite model that would allow limited reads and writes outside of arrays in TFLite. This exploits missing validation in the conversion from sparse tensors to dense tensors. PatchesWe have patched the issue in GitHub commit 6364463d6f5b6254cac3d6aedf999b6a96225038.The...

PYSEC-2026-3099 Read and Write outside of bounds in TensorFlow

Impact An attacker can craft a TFLite model that would allow limited reads and writes outside of arrays in TFLite. This exploits missing validation in the conversion from sparse tensors to dense tensors. Patches We have patched the issue in GitHub commit 6364463d6f5b6254cac3d6aedf999b6a96225038...

PYSEC-2026-3097 Heap overflow in Tensorflow

Impact The implementation of SparseCountSparseOutput is vulnerable to a heap overflow: python import tensorflow as tf import numpy as np tf.rawops.SparseCountSparseOutput indices=-1,-1, values=2, denseshape=1, 1, weights=1, binaryoutput=True, minlength=-1, maxlength=-1, name=None Patches We have...

PYSEC-2026-3146 Integer overflow in TFLite

Impact An attacker can craft a TFLite model that would cause an integer overflow in embedding lookup operations: cc int embeddingsize = 1; int lookupsize = 1; for int i = 0; i data.i32i; lookupsize = dim; outputshape-datak = dim; for int i = 1; i datak = dim; Both embeddingsize and lookupsize are...

Integer overflow in Tensorflow

ImpactThe implementation of Range suffers from integer overflows. These can trigger undefined behavior or, in some scenarios, extremely large allocations. PatchesWe have patched the issue in GitHub commit f0147751fd5d2ff23251149ebad9af9f03010732 merging 51733.The fix will be included in TensorFlo...