Memory leak in Tensorflow

ImpactIf a graph node is invalid, TensorFlow can leak memory in the implementation of ImmutableExecutorState::Initialize:ccStatus s = params.createkerneln-properties, &item-;kernel;if !s.ok item-kernel = nullptr; s = AttachDefs, n; return s; Here, we set item-kernel to nullptr but it is a simple...

`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,...

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...

Out of bounds write in TFLite

Impact An attacker can craft a TFLite model that would cause a write outside of bounds of an array in TFLite. In fact, the attacker can override the linked list used by the memory allocator. This can be leveraged for an arbitrary write primitive under certain conditions. PatchesWe have patched th...

PYSEC-2026-3102 `CHECK`-failures in Tensorflow

Impact An attacker can trigger denial of service via assertion failure by altering a SavedModel on disk such that AttrDefs of some operation are duplicated. Patches We have patched the issue in GitHub commit c2b31ff2d3151acb230edc3f5b1832d2c713a9e0. The fix will be included in TensorFlow 2.8.0. W...

Undefined behavior in `SparseTensorSliceDataset`

Impact The implementation of SparseTensorSliceDataset has an undefined behavior: under certain condition it can be made to dereference a nullptr value:pythonimport tensorflow as tfimport numpy as nptf.rawops.SparseTensorSliceDataset indices=, values=, denseshape=1,1The 3 input arguments represent...

Integer overflow leading to crash in Tensorflow

Impact The implementation of SparseCountSparseOutput can be made to crash a TensorFlow process by an integer overflow whose result is then used in a memory allocation:pythonimport tensorflow as tfimport numpy as np tf.rawops.SparseCountSparseOutput indices=1,1, values=2, denseshape=2 31, 2 32,...

Null pointer dereference in TensorFlow

ImpactWhen building an XLA compilation cache, if default settings are used, TensorFlow triggers a null pointer dereference:cc string allowedgpus = flr-configproto-gpuoptions.visibledevicelist; In the default scenario, all devices are allowed, so flr-configproto is nullptr. PatchesWe have patched...

PYSEC-2026-3241 Crash when type cannot be specialized in Tensorflow

Impact Under certain scenarios, TensorFlow can fail to specialize a type during shape inference: cc void InferenceContext::PreInputInit const OpDef& opdef, const std::vector& inputtensors, const std::vector& inputtensorsasshapes const auto ret = fulltype::SpecializeTypeattrs, opdef;...

TensorFlow has segfault in array_ops.upper_bound

Impactarrayops.upperbound causes a segfault when not given a rank 2 tensor. PatchesWe have patched the issue in GitHub commit 915884fdf5df34aaedd00fc6ace33a2cfdefa586.The fix will be included in TensorFlow 2.13. We will also cherrypick this commit in TensorFlow 2.12.1. For more informationPlease...

PYSEC-2026-1962 TensorFlow has segfault in array_ops.upper_bound

Impact arrayops.upperbound causes a segfault when not given a rank 2 tensor. Patches We have patched the issue in GitHub commit 915884fdf5df34aaedd00fc6ace33a2cfdefa586. The fix will be included in TensorFlow 2.13. We will also cherrypick this commit in TensorFlow 2.12.1. For more information...

PYSEC-2026-1954 Invalid char to bool conversion when printing a tensor

Impact When printing a tensor, we get it's data as a const char array since that's the underlying storage and then we typecast it to the element type. However, conversions from char to bool are undefined if the char is not 0 or 1, so sanitizers/fuzzers will crash. Patches We have patched the issu...

TensorFlow has Null Pointer Error in TensorArrayConcatV2

ImpactWhen ctx-stepcontainter is a null ptr, the Lookup function will be executed with a null pointer.pythonimport tensorflow as tftf.rawops.TensorArrayConcatV2handle='a', 'b', flowin = 0.1, dtype=tf.int32, elementshapeexcept0=1 PatchesWe have patched the issue in GitHub commit...

TensorFlow has Null Pointer Error in QuantizedMatMulWithBiasAndDequantize

ImpactNPE in QuantizedMatMulWithBiasAndDequantize with MKL enable pythonimport tensorflow as tffunc = tf.rawops.QuantizedMatMulWithBiasAndDequantizepara='a': tf.constant138, dtype=tf.quint8, 'b': tf.constant4, dtype=tf.qint8, 'bias': 31.81644630432129, 47.21876525878906, 109.95201110839844,...

PYSEC-2026-1960 TensorFlow has Floating Point Exception in AudioSpectrogram

Impact version:2.11.0 //core/ops/audioops.cc:70 Status SpectrogramShapeFnInferenceContext c ShapeHandle input; TFRETURNIFERRORc-WithRankc-input0, 2, &input; int32t windowsize; TFRETURNIFERRORc-GetAttr"windowsize", &windowsize; int32t stride; TFRETURNIFERRORc-GetAttr"stride", &stride; .....1...

PYSEC-2026-1964 TensorFlow has Floating Point Exception in AvgPoolGrad with XLA

Impact If the stride and window size are not positive for tf.rawops.AvgPoolGrad, it can give an FPE. python import tensorflow as tf import numpy as np @tf.functionjitcompile=True def test: y = tf.rawops.AvgPoolGradoriginputshape=1,0,0,0, grad=0.39117979, ksize=1,0,0,0, strides=1,0,0,0,...

TensorFlow has Null Pointer Error in LookupTableImportV2

ImpactThe function tf.rawops.LookupTableImportV2 cannot handle scalars in the values parameter and gives an NPE.pythonimport tensorflow as tfv = [email protected]=Truedef test: func = tf.rawops.LookupTableImportV2 para='tablehandle': v.handle,'keys': 62.98910140991211,...

PYSEC-2026-971 Tensorflow vulnerable to Out-of-Bounds Read

Impact When the BaseCandidateSamplerOp function receives a value in trueclasses larger than rangemax, a heap oob vuln occurs. python tf.rawops.ThreadUnsafeUnigramCandidateSampler trueclasses=0x100000,1, numtrue = 2, numsampled = 2, unique = False, rangemax = 2, seed = 2, seed2 = 2 Patches We have...

`CHECK` fail via inputs in `PyFunc`

ImpactAn input token that is not a UTF-8 bytestring will trigger a CHECK fail in tf.rawops.PyFunc.pythonimport tensorflow as tfvalue = tf.constantvalue=1,2token = b'\xb0'dataType = tf.int32tf.rawops.PyFuncinput=value,token=token,Tout=dataType PatchesWe have patched the issue in GitHub commit...

`tf.raw_ops.Mfcc` crashes

ImpactIf ThreadUnsafeUnigramCandidateSampler is given input filterbankchannelcount greater than the allowed max size, TensorFlow will crash.pythonimport tensorflow as tftf.rawops.Mfcc spectrogram = 1.38, 6.32, 5.75, 9.51, samplerate = 2, upperfrequencylimit = 5.0, lowerfrequencylimit = 1.0,...