Headline
GHSA-9g7v-8wxv-mwxp: Duplicate Advisory: Keras keras.utils.get_file API is vulnerable to a path traversal attack
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-hjqc-jx6g-rwp9. This link is maintained to preserve external references.
Original Description
Keras version 3.11.3 is affected by a path traversal vulnerability in the keras.utils.get_file() function when extracting tar archives. The vulnerability arises because the function uses Python’s tarfile.extractall() method without the security-critical filter=’data’ parameter. Although Keras attempts to filter unsafe paths using filter_safe_paths(), this filtering occurs before extraction, and a PATH_MAX symlink resolution bug triggers during extraction. This bug causes symlink resolution to fail due to path length limits, resulting in a security bypass that allows files to be written outside the intended extraction directory. This can lead to arbitrary file writes outside the cache directory, enabling potential system compromise or malicious code execution. The vulnerability affects Keras installations that process tar archives with get_file() and does not affect versions where this extraction method is secured with the appropriate filter parameter.
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- GitHub Advisory Database
- GitHub Reviewed
- CVE-2025-12638
Duplicate Advisory: Keras keras.utils.get_file API is vulnerable to a path traversal attack
High severity GitHub Reviewed Published Nov 28, 2025 to the GitHub Advisory Database • Updated Dec 2, 2025
Withdrawn This advisory was withdrawn on Dec 2, 2025
Affected versions
< 3.12.0
Description
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-hjqc-jx6g-rwp9. This link is maintained to preserve external references.
Original Description
Keras version 3.11.3 is affected by a path traversal vulnerability in the keras.utils.get_file() function when extracting tar archives. The vulnerability arises because the function uses Python’s tarfile.extractall() method without the security-critical filter=’data’ parameter. Although Keras attempts to filter unsafe paths using filter_safe_paths(), this filtering occurs before extraction, and a PATH_MAX symlink resolution bug triggers during extraction. This bug causes symlink resolution to fail due to path length limits, resulting in a security bypass that allows files to be written outside the intended extraction directory. This can lead to arbitrary file writes outside the cache directory, enabling potential system compromise or malicious code execution. The vulnerability affects Keras installations that process tar archives with get_file() and does not affect versions where this extraction method is secured with the appropriate filter parameter.
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-12638
- https://huntr.com/bounties/f94f5beb-54d8-4e6a-8bac-86d9aee103f4
- keras-team/keras@47fcb39
Published to the GitHub Advisory Database
Nov 28, 2025