GitHub Advisoryadvisory · PyPI

GHSA-hqp4-2352-xf5r Keras archive extraction utilities allow path traversal and arbitrary file writes

HIGH Published 2026-06-11 Modified 2026-08-07 Official page ↗
Aliases
CVE-2026-11816
Ecosystem
PyPI
Packages
keras
Severity
High
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weaknesses
CWE-22
Reviewed
2026-08-07

Affected packages

• PyPI keras: < 3.14.0 → fixed in 3.14.0

Description

Keras versions prior to 3.14.0 are vulnerable to a path traversal issue in the archive extraction utilities located in `keras/src/utils/file_utils.py`. The functions `filter_safe_tarinfos()` and `filter_safe_zipinfos()` validate archive member paths against the process current working directory (CWD) instead of the actual extraction destination. When the process runs with CWD set to `/`, which is common in Docker containers, CI/CD runners, and Jupyter environments, the validation boundary becomes the filesystem root, allowing traversal paths to bypass the security check. Additionally, the zip filter contains a bug that causes an `AttributeError` when a blocked entry is encountered, leading to incomplete extraction. Furthermore, Python 3.11 installations lack the `filter="data"` safety net, leaving them entirely reliant on the flawed CWD-based filter. Exploitation of this vulnerability can result in arbitrary file writes outside the intended extraction directory, enabling attackers to overwrite configuration files, inject malicious code, or corrupt machine learning datasets and pipelines.

Related

Alias · CVE (1)

  • CVE-2026-11816 Keras versions prior to 3.14.0 are vulnerable to a path traversal issue in the archive extraction utilities located in… vulnerability

Weakness · CWE (1)

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness

References