CHECK-fail in LSTM with zero-length input in TensorFlow
Priority LOW 20CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
EPSS 0.00173 6th percentileScored 2026-11-07
Fix Fixed tensorflow (tensorflow): 1.15.5, 2.0.4, 2.1.3 +2tensorflow (PyPI): 1.15.5, 2.0.4, 2.1.3 +2+2 more products
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| tensorflow | before 1.15.5; 2.0.0 to before 2.0.4; 2.1.0 to before 2.1.3; 2.2.0 to before 2.2.2; 2.3.0 to before 2.3.2 | 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2 | Patch available | CNA | |
| — | tensorflow (PyPI) | before 1.15.5 | 1.15.5 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow (PyPI) | 2.0.0 to before 2.0.4 | 2.0.4 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow (PyPI) | 2.1.0 to before 2.1.3 | 2.1.3 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow (PyPI) | 2.2.0 to before 2.2.2 | 2.2.2 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow (PyPI) | 2.3.0 to before 2.3.2 | 2.3.2 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-cpu (PyPI) | before 1.15.5 | 1.15.5 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-cpu (PyPI) | 2.0.0 to before 2.0.4 | 2.0.4 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-cpu (PyPI) | 2.1.0 to before 2.1.3 | 2.1.3 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-cpu (PyPI) | 2.2.0 to before 2.2.2 | 2.2.2 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-cpu (PyPI) | 2.3.0 to before 2.3.2 | 2.3.2 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-gpu (PyPI) | before 1.15.5 | 1.15.5 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-gpu (PyPI) | 2.0.0 to before 2.0.4 | 2.0.4 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-gpu (PyPI) | 2.1.0 to before 2.1.3 | 2.1.3 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-gpu (PyPI) | 2.2.0 to before 2.2.2 | 2.2.2 | Patch available | GHSA-m648-33qf-v3gp |
| — | tensorflow-gpu (PyPI) | 2.3.0 to before 2.3.2 | 2.3.2 | Patch available | GHSA-m648-33qf-v3gp |
- tensorflow VendorGoogle Affected before 1.15.5; 2.0.0 to before 2.0.4; 2.1.0 to before 2.1.3; 2.2.0 to before 2.2.2; 2.3.0 to before 2.3.2 Fixed in 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2 Patch available CNA
- tensorflow (PyPI) Vendor— Affected before 1.15.5 Fixed in 1.15.5 Patch available GHSA-m648-33qf-v3gp
- tensorflow (PyPI) Vendor— Affected 2.0.0 to before 2.0.4 Fixed in 2.0.4 Patch available GHSA-m648-33qf-v3gp
- tensorflow (PyPI) Vendor— Affected 2.1.0 to before 2.1.3 Fixed in 2.1.3 Patch available GHSA-m648-33qf-v3gp
- tensorflow (PyPI) Vendor— Affected 2.2.0 to before 2.2.2 Fixed in 2.2.2 Patch available GHSA-m648-33qf-v3gp
- tensorflow (PyPI) Vendor— Affected 2.3.0 to before 2.3.2 Fixed in 2.3.2 Patch available GHSA-m648-33qf-v3gp
- tensorflow-cpu (PyPI) Vendor— Affected before 1.15.5 Fixed in 1.15.5 Patch available GHSA-m648-33qf-v3gp
- tensorflow-cpu (PyPI) Vendor— Affected 2.0.0 to before 2.0.4 Fixed in 2.0.4 Patch available GHSA-m648-33qf-v3gp
- tensorflow-cpu (PyPI) Vendor— Affected 2.1.0 to before 2.1.3 Fixed in 2.1.3 Patch available GHSA-m648-33qf-v3gp
- tensorflow-cpu (PyPI) Vendor— Affected 2.2.0 to before 2.2.2 Fixed in 2.2.2 Patch available GHSA-m648-33qf-v3gp
- tensorflow-cpu (PyPI) Vendor— Affected 2.3.0 to before 2.3.2 Fixed in 2.3.2 Patch available GHSA-m648-33qf-v3gp
- tensorflow-gpu (PyPI) Vendor— Affected before 1.15.5 Fixed in 1.15.5 Patch available GHSA-m648-33qf-v3gp
- tensorflow-gpu (PyPI) Vendor— Affected 2.0.0 to before 2.0.4 Fixed in 2.0.4 Patch available GHSA-m648-33qf-v3gp
- tensorflow-gpu (PyPI) Vendor— Affected 2.1.0 to before 2.1.3 Fixed in 2.1.3 Patch available GHSA-m648-33qf-v3gp
- tensorflow-gpu (PyPI) Vendor— Affected 2.2.0 to before 2.2.2 Fixed in 2.2.2 Patch available GHSA-m648-33qf-v3gp
- tensorflow-gpu (PyPI) Vendor— Affected 2.3.0 to before 2.3.2 Fixed in 2.3.2 Patch available GHSA-m648-33qf-v3gp
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* | before 1.15.5; 2.0.0 to before 2.0.4; 2.1.0 to before 2.1.3; 2.2.0 to before 2.2.2; 2.3.0 to before 2.3.2 | Vulnerable |
- cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* Versions before 1.15.5; 2.0.0 to before 2.0.4; 2.1.0 to before 2.1.3; 2.2.0 to before 2.2.2; 2.3.0 to before 2.3.2 Vulnerable ·Google
Remediation
- Fix · CNA tensorflow (tensorflow) Fixed in 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2
- Fix · GHSA-m648-33qf-v3gp tensorflow (PyPI) Fixed in 1.15.5 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow (PyPI) Fixed in 2.0.4 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow (PyPI) Fixed in 2.1.3 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow (PyPI) Fixed in 2.2.2 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow (PyPI) Fixed in 2.3.2 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-cpu (PyPI) Fixed in 1.15.5 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-cpu (PyPI) Fixed in 2.0.4 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-cpu (PyPI) Fixed in 2.1.3 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-cpu (PyPI) Fixed in 2.2.2 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-cpu (PyPI) Fixed in 2.3.2 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-gpu (PyPI) Fixed in 1.15.5 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-gpu (PyPI) Fixed in 2.0.4 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-gpu (PyPI) Fixed in 2.1.3 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-gpu (PyPI) Fixed in 2.2.2 Advisory →
- Fix · GHSA-m648-33qf-v3gp tensorflow-gpu (PyPI) Fixed in 2.3.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26270
- 2026-10-03 Alias added: GHSA-m648-33qf-v3gp
References
Patch 2
Other 4
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2020-301.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2020-336.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2020-256.yaml
- https://github.com/tensorflow/tensorflow
More Google Tensorflow vulnerabilities
- TI-2022-20241 FractionalMaxPool and FractionalAVGPool heap out-of-bounds acess in Tensorflow CVSS 3.1CRITICAL 9.8
- TI-2022-07640 Integer overflow in Tensorflow CVSS 3.1CRITICAL 9.8
- TI-2022-07627 Out of bounds read and write in Tensorflow CVSS 3.1HIGH 8.8
- TI-2022-07619 Out of bounds write in Tensorflow CVSS 3.1HIGH 8.8
- TI-2022-07613 Read and Write outside of bounds in TFLite CVSS 3.1HIGH 8.8
- TI-2022-07612 Integer overflow in TFLite CVSS 3.1HIGH 8.8
Sources
- CVE-2020-26270 · CVE Program
- CVE-2020-26270 · NVD
- FIRST EPSS
- GHSA-m648-33qf-v3gp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences