CVE-2025-9905 — HIGH (CVSS 7.3) AI Security Vulnerability

The Keras Model.load_model method can be exploited to achieve arbitrary code execution, even with safe_mode=True. One can create a specially crafted .h5/.hdf5 model archive that, when loaded via...

Full analysis pending. Showing NVD description excerpt.

Affected Systems

Package	Ecosystem	Vulnerable Range	Patched
keras	pip	>= 3.0.0, < 3.11.3	`3.11.3`
keras	pip	—	No patch

Severity & Risk

CVSS 3.1

7.3 / 10

EPSS

0.0%

chance of exploitation in 30 days

KEV Status

Not in KEV

Sophistication

N/A

Recommended Action

Patch available

Update keras to version 3.11.3

Compliance Impact

Compliance analysis pending. Sign in for full compliance mapping when available.

Technical Details

NVD Description

The Keras Model.load_model method can be exploited to achieve arbitrary code execution, even with safe_mode=True. One can create a specially crafted .h5/.hdf5 model archive that, when loaded via Model.load_model, will trigger arbitrary code to be executed. This is achieved by crafting a special .h5 archive file that uses the Lambda layer feature of keras which allows arbitrary Python code in the form of pickled code. The vulnerability comes from the fact that the safe_mode=True option is not honored when reading .h5 archives. Note that the .h5/.hdf5 format is a legacy format supported by Keras 3 for backwards compatibility.

Weaknesses (CWE)

CWE-913 Improper Control of Dynamically-Managed Code Resources Primary CWE-913

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

References

Timeline

Published

September 19, 2025

Last Modified

September 23, 2025

First Seen

September 19, 2025