CVE-2021-35958

** DISPUTED ** TensorFlow through 2.5.0 allows attackers to overwrite arbitrary files via a...

9.1 CriticalFix availableDisputed

TensorFlow through 2.5.0 allows attackers to overwrite arbitrary files via a crafted archive when tf.keras.utils.get_file is used with extract=True. NOTE: the vendor's position is that tf.keras.utils.get_file is not intended for untrusted archives

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: High

Exploit likelihood

1.86%Up 0.6 points since Jun 30, 2021

What each source reports

NVD Score used 9.1

Record: CVE-2021-35958
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS 2.0: 6.4 MediumAV:N/AC:L/Au:N/C:N/I:P/A:P
Weakness: CWE-22
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-35958
Updated: 2026-11-02

EUVDEUVD-2021-22592 No score

Record: EUVD-2021-22592
Updated: 2026-11-03

GitHub AdvisoriesGHSA-4cm9-63x5-55wm 9.1

** DISPUTED ** TensorFlow through 2.5.0 allows attackers to overwrite arbitrary files via a...

** DISPUTED ** TensorFlow through 2.5.0 allows attackers to overwrite arbitrary files via a crafted archive when tf.keras.utils.get_file is used with extract=True. NOTE: the vendor's position is that tf.keras.utils.get_file is not intended for untrusted archives.

Record: GHSA-4cm9-63x5-55wm
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness: CWE-22, CWE-668
Updated: 2026-11-02

OSV 9.1

Record: CVE-2021-35958
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated: 2026-11-02

OSVBIT-tensorflow-2021-35958 No score

Record: BIT-tensorflow-2021-35958
Updated: 2026-11-02

Affected products

google tensorflow

Affected packages

Affected packages
Package	Affected	Fixed
`tensorflow` Bitnami	before 2.5.1	2.5.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-35958 is a critical vulnerability (CVSS 9.1) in Google Tensorflow, published June 30, 2021. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 1.86%, the 79th percentile. Fixed in tensorflow 2.5.1.