cve.bz

CVE-2021-41213

5.5 mediumEPSS 0.2%

Medium (5.5) in google tensorflow. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in tensorflow 2.4.4, 2.5.2, 2.6.1.

TensorFlow is an open source platform for machine learning. In affected versions the code behind `tf.function` API can be made to deadlock when two `tf.function` decorated Python functions are mutually recursive. This occurs due to using a non-reentrant `Lock` Python object. Loading any model which contains mutually recursive functions is vulnerable. An attacker can cause denial of service by causing users to load such models and calling a recursive `tf.function`, although this is not a frequent scenario. 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.

Severity

CVSS 3.1

5.5 medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-31)
CWEs
CWE-662, CWE-667
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-h67m-xg8f-fxcfPyPItensorflow>=2.6.0 <2.6.12.6.1
GHSA-h67m-xg8f-fxcfPyPItensorflow>=2.5.0 <2.5.22.5.2
GHSA-h67m-xg8f-fxcfPyPItensorflow<2.4.42.4.4
GHSA-h67m-xg8f-fxcfPyPItensorflow-cpu>=2.6.0 <2.6.12.6.1
GHSA-h67m-xg8f-fxcfPyPItensorflow-cpu>=2.5.0 <2.5.22.5.2
GHSA-h67m-xg8f-fxcfPyPItensorflow-cpu<2.4.42.4.4
GHSA-h67m-xg8f-fxcfPyPItensorflow-gpu>=2.6.0 <2.6.12.6.1
GHSA-h67m-xg8f-fxcfPyPItensorflow-gpu>=2.5.0 <2.5.22.5.2
GHSA-h67m-xg8f-fxcfPyPItensorflow-gpu<2.4.42.4.4
PYSEC-2021-405PyPItensorflow<2.4.4
>=2.5.0 <2.5.2
>=2.6.0 <2.6.1
>=2.7.0rc0 <2.7.0		2.4.4, 2.5.2, 2.6.1, 2.7.0
PYSEC-2021-622PyPItensorflow-cpu<2.4.4
>=2.5.0 <2.5.2
>=2.6.0 <2.6.1
>=2.7.0rc0 <2.7.0		2.4.4, 2.5.2, 2.6.1, 2.7.0
PYSEC-2021-820PyPItensorflow-gpu<2.4.4
>=2.5.0 <2.5.2
>=2.6.0 <2.6.1
>=2.7.0rc0 <2.7.0		2.4.4, 2.5.2, 2.6.1, 2.7.0

References

Check your stackJSON