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MEDIUM severity

GHSA-hp4c-x6r7-6555

MEDIUMFix: tensorflow/tensorflow@d9204be

GHSA-hp4c-x6r7-6555 is a medium-severity (CVSS 5.5) CWE-369 vulnerability in tensorflow. O3 Security confirms whether GHSA-hp4c-x6r7-6555 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Floating point exception in `SparseDenseCwiseDiv`

Also known asBIT-tensorflow-2021-37636CVE-2021-37636PYSEC-2021-258PYSEC-2021-549PYSEC-2021-747
Published
Aug 25, 2021
Updated
Jul 8, 2026
Affected
9 pkgs
Patched
9 / 9
Exploits
None indexed
Exploitation data as of Jul 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

9 pkgs affected
🐍tensorflow🐍tensorflow🐍tensorflow🐍tensorflow-cpu🐍tensorflow-cpu🐍tensorflow-cpu🐍tensorflow-gpu🐍tensorflow-gpu+1 more

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Impact

The implementation of tf.raw_ops.SparseDenseCwiseDiv is vulnerable to a division by 0 error:

import tensorflow as tf
import numpy as np

tf.raw_ops.SparseDenseCwiseDiv( 
  sp_indices=np.array([[4]]),
  sp_values=np.array([-400]),
  sp_shape=np.array([647.]),
  dense=np.array([0]))

The implementation uses a common class for all binary operations but fails to treat the division by 0 case separately.

Patches

We have patched the issue in GitHub commit d9204be9f49520cdaaeb2541d1dc5187b23f31d9.

The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.

For more information

Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.

Attribution

This vulnerability has been reported by members of the Aivul Team from Qihoo 360.

Affected Packages

9 total 9 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPItensorflowall versions2.3.4
🐍PyPItensorflow2.4.0&&< 2.4.32.4.3
🐍PyPItensorflow2.5.0&&< 2.5.12.5.1
🐍PyPItensorflow-cpuall versions2.3.4
🐍PyPItensorflow-cpu2.4.0&&< 2.4.32.4.3
🐍PyPItensorflow-cpu2.5.0&&< 2.5.12.5.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tensorflow. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update tensorflow to 2.3.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hp4c-x6r7-6555 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-hp4c-x6r7-6555 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-hp4c-x6r7-6555. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact The implementation of `tf.raw_ops.SparseDenseCwiseDiv` is vulnerable to a division by 0 error: ```python import tensorflow as tf import numpy as np tf.raw_ops.SparseDenseCwiseDiv( sp_indices=np.array([[4]]), sp_values=np.array([-400]), sp_shape=np.array([647.]), dense=np.array([0])) ``` The [implementation](https://github.com/tensorflow/tensorflow/blob/a1bc56203f21a5a4995311825ffaba7a670d7747/tensorflow/core/kernels/sparse_dense_binary_op_shared.cc#L56) uses a common class for all binary operations but fails to treat the division by 0 case separately. ### Patches We hav
O3 Security · Impact-Aware SCA

Is GHSA-hp4c-x6r7-6555 in your dependencies?

O3 detects GHSA-hp4c-x6r7-6555 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-hp4c-x6r7-6555: Floating point… | O3 Security