{"cve":"CVE-2021-29532","nvd":{"published":"2021-05-14T20:15:12.073","modified":"2026-06-17T03:47:51.150","status":"Modified","description":"TensorFlow is an end-to-end open source platform for machine learning. An attacker can force accesses outside the bounds of heap allocated arrays by passing in invalid tensor values to `tf.raw_ops.RaggedCross`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/efea03b38fb8d3b81762237dc85e579cc5fc6e87/tensorflow/core/kernels/ragged_cross_op.cc#L456-L487) lacks validation for the user supplied arguments. Each of the above branches call a helper function after accessing array elements via a `*_list[next_*]` pattern, followed by incrementing the `next_*` index. However, as there is no validation that the `next_*` values are in the valid range for the corresponding `*_list` arrays, this results in heap OOB reads. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1},"cwes":["CWE-125"],"references":["https://github.com/tensorflow/tensorflow/commit/44b7f486c0143f68b56c34e2d01e146ee445134a","https://github.com/tensorflow/tensorflow/security/advisories/GHSA-j47f-4232-hvv8","https://github.com/tensorflow/tensorflow/commit/44b7f486c0143f68b56c34e2d01e146ee445134a","https://github.com/tensorflow/tensorflow/security/advisories/GHSA-j47f-4232-hvv8"],"products":["google:tensorflow"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-29532","score":0.00198,"percentile":0.0967,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-j47f-4232-hvv8","url":"https://osv.dev/vulnerability/GHSA-j47f-4232-hvv8","summary":"Heap out of bounds read in `RaggedCross`","modified":"2026-07-08T06:27:56.949404754Z","packages":[{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":["<2.1.4"],"fixed":["2.1.4"]},{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":[">=2.2.0 <2.2.3"],"fixed":["2.2.3"]},{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":[">=2.3.0 <2.3.3"],"fixed":["2.3.3"]},{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":[">=2.4.0 <2.4.2"],"fixed":["2.4.2"]},{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":["<2.1.4"],"fixed":["2.1.4"]},{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":[">=2.2.0 <2.2.3"],"fixed":["2.2.3"]},{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":[">=2.3.0 <2.3.3"],"fixed":["2.3.3"]},{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":[">=2.4.0 <2.4.2"],"fixed":["2.4.2"]},{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":["<2.1.4"],"fixed":["2.1.4"]},{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":[">=2.2.0 <2.2.3"],"fixed":["2.2.3"]},{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":[">=2.3.0 <2.3.3"],"fixed":["2.3.3"]},{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":[">=2.4.0 <2.4.2"],"fixed":["2.4.2"]}]},{"id":"PYSEC-2021-169","url":"https://osv.dev/vulnerability/PYSEC-2021-169","summary":"","modified":"2023-12-06T01:01:04.406602Z","packages":[{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":["<2.2.0rc0",">=2.2.0 <2.3.0rc0",">=2.3.0 <2.3.4",">=2.4.0 <2.4.3"],"fixed":["2.2.0rc0","2.3.0rc0","2.3.4","2.4.3"]}]},{"id":"PYSEC-2021-460","url":"https://osv.dev/vulnerability/PYSEC-2021-460","summary":"","modified":"2023-12-06T01:01:04.406602Z","packages":[{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":["<2.2.0rc0",">=2.2.0 <2.3.0rc0",">=2.3.0 <2.3.4",">=2.4.0 <2.4.3"],"fixed":["2.2.0rc0","2.3.0rc0","2.3.4","2.4.3"]}]},{"id":"PYSEC-2021-658","url":"https://osv.dev/vulnerability/PYSEC-2021-658","summary":"","modified":"2023-12-06T01:01:04.406602Z","packages":[{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":["<2.2.0rc0",">=2.2.0 <2.3.0rc0",">=2.3.0 <2.3.4",">=2.4.0 <2.4.3"],"fixed":["2.2.0rc0","2.3.0rc0","2.3.4","2.4.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}