{"id":"CVE-2021-29611","aliases":["GHSA-9rpc-5v9q-5r7f","BIT-tensorflow-2021-29611","PYSEC-2021-248","PYSEC-2021-539","PYSEC-2021-737"],"title":"Incomplete validation in `SparseReshape`","summary":"Incomplete validation in `SparseReshape`","severity":"low","cvss":3.6,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L","vendor":"tensorflow","product":"tensorflow","ecosystem":"pip","affected":["tensorflow >= 2.3.0, < 2.3.3","tensorflow >= 2.4.0, < 2.4.2","tensorflow-cpu >= 2.3.0, < 2.3.3","tensorflow-cpu >= 2.4.0, < 2.4.2","tensorflow-gpu >= 2.3.0, < 2.3.3","tensorflow-gpu >= 2.4.0, < 2.4.2"],"patched":["tensorflow 2.3.3","tensorflow 2.4.2","tensorflow-cpu 2.3.3","tensorflow-cpu 2.4.2","tensorflow-gpu 2.3.3","tensorflow-gpu 2.4.2"],"published":"2021-05-21","updated":"2026-07-08","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-9rpc-5v9q-5r7f","references":[{"url":"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-9rpc-5v9q-5r7f"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29611"},{"url":"https://github.com/tensorflow/tensorflow/commit/1d04d7d93f4ed3854abf75d6b712d72c3f70d6b6"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-539.yaml"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-737.yaml"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-248.yaml"},{"url":"https://github.com/tensorflow/tensorflow"}],"tags":["osv","pip"],"epss":0.00202,"epssPercentile":0.10408,"ingestedAt":"2026-07-08T18:25:48.081Z","slug":"CVE-2021-29611","body":"## Overview\n\n### Impact\nIncomplete validation in `SparseReshape` results in a denial of service based on a `CHECK`-failure.\n\n```python\nimport tensorflow as tf\n\ninput_indices = tf.constant(41, shape=[1, 1], dtype=tf.int64)\ninput_shape = tf.zeros([11], dtype=tf.int64)\nnew_shape = tf.zeros([1], dtype=tf.int64)\n\ntf.raw_ops.SparseReshape(input_indices=input_indices,\n    input_shape=input_shape,\n    new_shape=new_shape)\n``` \n    \nThe [implementation](https://github.com/tensorflow/tensorflow/blob/e87b51ce05c3eb172065a6ea5f48415854223285/tensorflow/core/kernels/sparse_reshape_op.cc#L40) has no validation that the input arguments specify a valid sparse tensor.\n\n### Patches \nWe have patched the issue in GitHub commit [1d04d7d93f4ed3854abf75d6b712d72c3f70d6b6](https://github.com/tensorflow/tensorflow/commit/1d04d7d93f4ed3854abf75d6b712d72c3f70d6b6).\n\nThe fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2 and TensorFlow 2.3.3, as these are the only affected versions.\n\n### For more information\nPlease 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.\n\n### Attribution \nThis vulnerability has been reported by Ying Wang and Yakun Zhang of Baidu X-Team.\n\n## Affected packages\n\n- `tensorflow >= 2.3.0, < 2.3.3`\n- `tensorflow >= 2.4.0, < 2.4.2`\n- `tensorflow-cpu >= 2.3.0, < 2.3.3`\n- `tensorflow-cpu >= 2.4.0, < 2.4.2`\n- `tensorflow-gpu >= 2.3.0, < 2.3.3`\n- `tensorflow-gpu >= 2.4.0, < 2.4.2`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `tensorflow 2.3.3`\n- `tensorflow 2.4.2`\n- `tensorflow-cpu 2.3.3`\n- `tensorflow-cpu 2.4.2`\n- `tensorflow-gpu 2.3.3`\n- `tensorflow-gpu 2.4.2`","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":19.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}