CVE-2021-41200 json
Incomplete validation in `tf.summary.create_file_writer`
published 2021-11-05 5 y ago modified 2026-09-08 2 mo ago also BIT-tensorflow-2021-41200 , EUVD-2021-0423 , GHSA-gh8h-7j2j-qv4f , PYSEC-2021-393 , PYSEC-2021-610 , PYSEC-2021-808
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
TensorFlow is an open source platform for machine learning. In affected versions if `tf.summary.create_file_writer` is called with non-scalar arguments code crashes due to a `CHECK`-fail. 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.
Patch / fix
- pypi tensorflow 2.4.4, 2.5.2, 2.6.1, 2.7.0
- pypi tensorflow-cpu 2.4.4, 2.5.2, 2.6.1, 2.7.0
- pypi tensorflow-gpu 2.4.4, 2.5.2, 2.6.1, 2.7.0
- bitnami tensorflow 2.4.4, 2.5.2, 2.6.1
- google tensorflow 2.4.4, 2.5.2
- tensorflow Arch Linux 2.6.1-1
arch linux advisories AVG-2529
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/tensorflow/tensorflow/security/advisories/GHSA-gh8h-7j2j-qv4f referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/tensorflow/tensorflow/issues/46909 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:N/I:N/A:P |
| OSV | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | tensorflow | >=2.6.0, <2.6.1 >=2.5.0, <2.5.2 <2.4.4 >=2.7.0rc0, <2.7.0 |
2.6.1 2.5.2 2.4.4 2.7.0 |
| pypi | tensorflow-cpu | >=2.6.0, <2.6.1 >=2.5.0, <2.5.2 <2.4.4 >=2.7.0rc0, <2.7.0 |
2.6.1 2.5.2 2.4.4 2.7.0 |
| pypi | tensorflow-gpu | >=2.6.0, <2.6.1 >=2.5.0, <2.5.2 <2.4.4 >=2.7.0rc0, <2.7.0 |
2.6.1 2.5.2 2.4.4 2.7.0 |
| bitnami | tensorflow | <2.4.4 >=2.5.0, <2.5.2 >=2.6.0, <2.6.1 |
2.4.4 2.5.2 2.6.1 |
Affected products
- tensorflow tensorflow
Classification
- Weakness
-
- CWE-617 Reachable Assertion
References
-
github.com
/tensorflow/tensorflow/commit/874bda09e6702cd50bac90b453b50bcc65b2769e
web, patch, third-party-advisory, advisory
-
github.com
/tensorflow/tensorflow/security/advisories/GHSA-gh8h-7j2j-qv4f
web, exploit, third-party-advisory, advisory
-
github.com
/tensorflow/tensorflow/issues/46909
web, exploit, third-party-advisory, advisory, report
-
nvd.nist.gov
/vuln/detail/CVE-2021-41200
advisory, web
-
github.com
/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-610.yaml
web
-
github.com
/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-808.yaml
web
-
github.com
/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-393.yaml
web
-
github.com
/tensorflow/tensorflow
package
Sources
- CVE List CVE-2021-41200
- GitHub Advisory GHSA-gh8h-7j2j-qv4f
- NVD CVE-2021-41200
- OSV BIT-tensorflow-2021-41200
- OSV PYSEC-2021-393
- OSV PYSEC-2021-610
- OSV PYSEC-2021-808
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.