{"cve":"CVE-2020-26270","nvd":{"published":"2020-12-10T23:15:12.973","modified":"2026-06-17T03:07:58.020","status":"Modified","description":"In affected versions of TensorFlow running an LSTM/GRU model where the LSTM/GRU layer receives an input with zero-length results in a CHECK failure when using the CUDA backend. This can result in a query-of-death vulnerability, via denial of service, if users can control the input to the layer. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","score":3.3},"cwes":["CWE-20"],"references":["https://github.com/tensorflow/tensorflow/commit/14755416e364f17fb1870882fa778c7fec7f16e3","https://github.com/tensorflow/tensorflow/security/advisories/GHSA-m648-33qf-v3gp","https://github.com/tensorflow/tensorflow/commit/14755416e364f17fb1870882fa778c7fec7f16e3","https://github.com/tensorflow/tensorflow/security/advisories/GHSA-m648-33qf-v3gp"],"products":["google:tensorflow"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-26270","score":0.00173,"percentile":0.06682,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-m648-33qf-v3gp","url":"https://osv.dev/vulnerability/GHSA-m648-33qf-v3gp","summary":"CHECK-fail in LSTM with zero-length input in TensorFlow","modified":"2026-07-08T06:00:14.083996627Z","packages":[{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":["<1.15.5"],"fixed":["1.15.5"]},{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":[">=2.0.0 <2.0.4"],"fixed":["2.0.4"]},{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":[">=2.1.0 <2.1.3"],"fixed":["2.1.3"]},{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":[">=2.2.0 <2.2.2"],"fixed":["2.2.2"]},{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":[">=2.3.0 <2.3.2"],"fixed":["2.3.2"]},{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":["<1.15.5"],"fixed":["1.15.5"]},{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":[">=2.0.0 <2.0.4"],"fixed":["2.0.4"]},{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":[">=2.1.0 <2.1.3"],"fixed":["2.1.3"]},{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":[">=2.2.0 <2.2.2"],"fixed":["2.2.2"]},{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":[">=2.3.0 <2.3.2"],"fixed":["2.3.2"]},{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":["<1.15.5"],"fixed":["1.15.5"]},{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":[">=2.0.0 <2.0.4"],"fixed":["2.0.4"]},{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":[">=2.1.0 <2.1.3"],"fixed":["2.1.3"]},{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":[">=2.2.0 <2.2.2"],"fixed":["2.2.2"]},{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":[">=2.3.0 <2.3.2"],"fixed":["2.3.2"]}]},{"id":"PYSEC-2020-256","url":"https://osv.dev/vulnerability/PYSEC-2020-256","summary":"","modified":"2023-12-06T01:00:27.868592Z","packages":[{"ecosystem":"PyPI","name":"tensorflow","purl":"pkg:pypi/tensorflow","ranges":["<1.15.5",">=2.0.0 <2.0.4",">=2.1.0 <2.1.3",">=2.2.0 <2.2.2",">=2.3.0 <2.3.2"],"fixed":["1.15.5","2.0.4","2.1.3","2.2.2","2.3.2"]}]},{"id":"PYSEC-2020-301","url":"https://osv.dev/vulnerability/PYSEC-2020-301","summary":"","modified":"2023-12-06T01:00:27.868592Z","packages":[{"ecosystem":"PyPI","name":"tensorflow-cpu","purl":"pkg:pypi/tensorflow-cpu","ranges":["<1.15.5",">=2.0.0 <2.0.4",">=2.1.0 <2.1.3",">=2.2.0 <2.2.2",">=2.3.0 <2.3.2"],"fixed":["1.15.5","2.0.4","2.1.3","2.2.2","2.3.2"]}]},{"id":"PYSEC-2020-336","url":"https://osv.dev/vulnerability/PYSEC-2020-336","summary":"","modified":"2023-12-06T01:00:27.868592Z","packages":[{"ecosystem":"PyPI","name":"tensorflow-gpu","purl":"pkg:pypi/tensorflow-gpu","ranges":["<1.15.5",">=2.0.0 <2.0.4",">=2.1.0 <2.1.3",">=2.2.0 <2.2.2",">=2.3.0 <2.3.2"],"fixed":["1.15.5","2.0.4","2.1.3","2.2.2","2.3.2"]}]}],"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."]}