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GHSA-xrqm-fpgr-6hhx

MEDIUM

Overflow/crash in `tf.range`

Also known asBIT-tensorflow-2021-41202CVE-2021-41202PYSEC-2021-395PYSEC-2021-612PYSEC-2021-810
Published
Nov 10, 2021
Updated
Mar 13, 2026
Affected
9 pkgs
Patched
9 / 9
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk10th percentile+0.17%
0.00%0.23%0.47%0.70%0.0%0.2%Dec 25Apr 26Jun 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

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

While calculating the size of the output within the tf.range kernel, there is a conditional statement of type int64 = condition ? int64 : double. Due to C++ implicit conversion rules, both branches of the condition will be cast to double and the result would be truncated before the assignment. This result in overflows:

import tensorflow as tf

tf.sparse.eye(num_rows=9223372036854775807, num_columns=None)

Similarly, tf.range would result in crashes due to overflows if the start or end point are too large.

import tensorflow as tf

tf.range(start=-1e+38, limit=1)

Patches

We have patched the issue in GitHub commits 6d94002a09711d297dbba90390d5482b76113899 (merging #51359) and 1b0e0ec27e7895b9985076eab32445026ae5ca94 (merging #51711).

The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, 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 externally via GitHub issue, GitHub issue and GitHub issue.

Affected Packages

9 total 9 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPItensorflow2.6.0&&< 2.6.12.6.1
🐍PyPItensorflow2.5.0&&< 2.5.22.5.2
🐍PyPItensorflowall versions2.4.4
🐍PyPItensorflow-cpu2.6.0&&< 2.6.12.6.1
🐍PyPItensorflow-cpu2.5.0&&< 2.5.22.5.2
🐍PyPItensorflow-cpuall versions2.4.4

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 2.6.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xrqm-fpgr-6hhx 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-xrqm-fpgr-6hhx 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-xrqm-fpgr-6hhx. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact While calculating the size of the output within the `tf.range` kernel, there is a conditional statement of type `int64 = condition ? int64 : double`. Due to C++ implicit conversion rules, both branches of the condition will be cast to `double` and the result would be truncated before the assignment. This result in overflows: ```python import tensorflow as tf tf.sparse.eye(num_rows=9223372036854775807, num_columns=None) ``` Similarly, `tf.range` would result in crashes due to overflows if the start or end point are too large. ```python import tensorflow as tf tf.range(start=-1
O3 Security · Impact-Aware SCA

Is GHSA-xrqm-fpgr-6hhx in your dependencies?

O3 detects GHSA-xrqm-fpgr-6hhx across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.