CVE-2026-1462: Keras Keras Has An Untrusted Deserialization Vulnerability

HIGH
Advisory Identifier: GHSA-4f3f-g24h-fr8m
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CVSS 8.8
CWE-502
Published
Advisory Summary

CVE-2026-1462 is a HIGH (CVSS 8.8) keras has an untrusted deserialization vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Keras libraries in the PyPI ecosystem. The issue involves keras has an untrusted deserialization vulnerability. Remediation is available by upgrading affected packages to version 3.13.2.

CVE-2026-1462 at a Glance

CVE Identifier CVE-2026-1462
GHSA Identifier GHSA-4f3f-g24h-fr8m
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Keras
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-1462

To remediate this vulnerability, upgrade all affected Keras dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

keras fixed: 3.13.2 
pip install keras>=3.13.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show keras

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-1462, inspect your installed packages using pip:

pip show keras

Analyze the terminal output to locate any version of Keras in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.13.2), your application is affected.

Note: The pip show keras command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Keras, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability in the `TFSMLayer` class of the `keras` package, version 3.13.0, allows attacker-controlled TensorFlow SavedModels to be loaded during deserialization of `.keras` models, even when `safe_mode=True`. This bypasses the security guarantees of `safe_mode` and enables arbitrary attacker-controlled code execution during model inference under the victim's privileges. The issue arises due to the unconditional loading of external SavedModels, serialization of attacker-controlled file paths, and the lack of validation in the `from_config()` method.

CVE-2026-1462 Affected Keras Versions

1 component(s)
Fixed Versions:
3.13.2
Product / Package Ecosystem Affected Versions Fixed Version
keras
pypi/keras
PyPI
< 3.13.2
3.13.2

References

NVD — CVE-2026-1462 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1462
Keras Source Repository REPOSITORY
https://github.com/keras-team/keras/pull/22035
Security Fix Commit FIX COMMIT
https://github.com/keras-team/keras/commit/b6773d3decaef1b05d8e794458e148cb362f163f
Keras Source Repository REPOSITORY
https://github.com/keras-team/keras
huntr.com/bounties/7e78d6f1-6... WEB
https://huntr.com/bounties/7e78d6f1-6977-4300-b595-e81bdbda331c

Frequently Asked Questions

What is CVE-2026-1462?
CVE-2026-1462 is a security vulnerability in Keras involving Keras has an untrusted deserialization vulnerability under CWE-502: Deserialization of Untrusted Data.
Which Keras versions are affected?
Affected versions include releases prior to 3.13.2 across affected packages: keras.
What version fixes CVE-2026-1462?
Upgrading to 3.13.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is keras affected?
Yes, keras is affected in releases prior to 3.13.2. Upgrade your dependency to 3.13.2 or later.
What is the CVSS score of CVE-2026-1462?
CVE-2026-1462 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-1462?
CVE-2026-1462 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check PyPI dependencies for CVE-2026-1462?
Run the dependency tree command: 'pip show keras'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
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  "id" : "GHSA-4f3f-g24h-fr8m",
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  "summary" : "Keras has an untrusted deserialization vulnerability",
  "details" : "A vulnerability in the `TFSMLayer` class of the `keras` package, version 3.13.0, allows attacker-controlled TensorFlow SavedModels to be loaded during deserialization of `.keras` models, even when `safe_mode=True`. This bypasses the security guarantees of `safe_mode` and enables arbitrary attacker-controlled code execution during model inference under the victim's privileges. The issue arises due to the unconditional loading of external SavedModels, serialization of attacker-controlled file paths, and the lack of validation in the `from_config()` method.",
  "severity" : [ {
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  "references" : [ {
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  }, {
    "type" : "WEB",
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    "severity" : "HIGH",
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