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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
keras-team keras-team/keras
unspecified to < 3.14.0affected
References
- https://huntr.com/bounties/a07e3983-7158-4419-af2b-38f1dea01a4f ↗
- https://github.com/keras-team/keras/commit/2465b6657b02c8eed308759b7e800e295ae01888 ↗
- https://access.redhat.com/security/cve/CVE-2026-11816 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2487912 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-11816.json ↗
- https://access.redhat.com/errata/RHSA-2026:42644 ↗