CVE-2026-11816: Keras Path Traversal Vulnerability
HIGHCVE-2026-11816 is a HIGH (CVSS 8.1) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Keras libraries in the PyPI ecosystem. The issue involves keras archive extraction utilities allow path traversal and arbitrary file writes. Remediation is available by upgrading affected packages to version 3.14.0.
CVE-2026-11816 at a Glance
Security Impact
CVSS: 8.1
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:N).
How to Fix CVE-2026-11816
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.
pip install keras>=3.14.0Run the following command in your project directory to verify that all resolved dependencies use the patched release:
pip show kerasHow to Check if You Are Affected
To determine whether your Python environment is affected by CVE-2026-11816, inspect your installed packages using pip:
pip show kerasAnalyze 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 3.14.0), 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. 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
CVE-2026-11816 Affected Keras Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
keras
|
PyPI |
< 3.14.0
|
3.14.0
|
References
Frequently Asked Questions
What is CVE-2026-11816?
Which Keras versions are affected?
What version fixes CVE-2026-11816?
Is keras affected?
What is the CVSS score of CVE-2026-11816?
What CWE is associated with CVE-2026-11816?
How can I check PyPI dependencies for CVE-2026-11816?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-hqp4-2352-xf5r",
"modified" : "2026-08-07T20:09:23Z",
"published" : "2026-06-11T15:31:33Z",
"aliases" : [ "CVE-2026-11816" ],
"summary" : "Keras archive extraction utilities allow path traversal and arbitrary file writes",
"details" : "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.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "PyPI",
"name" : "keras"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "3.14.0"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-11816"
}, {
"type" : "WEB",
"url" : "https://github.com/keras-team/keras/pull/22194"
}, {
"type" : "WEB",
"url" : "https://github.com/keras-team/keras/commit/2465b6657b02c8eed308759b7e800e295ae01888"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:42644"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/security/cve/CVE-2026-11816"
}, {
"type" : "WEB",
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2487912"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/keras-team/keras"
}, {
"type" : "WEB",
"url" : "https://github.com/keras-team/keras/releases/tag/v3.14.0"
}, {
"type" : "WEB",
"url" : "https://github.com/pypa/advisory-database/tree/main/vulns/keras/PYSEC-2026-2324.yaml"
}, {
"type" : "WEB",
"url" : "https://huntr.com/bounties/a07e3983-7158-4419-af2b-38f1dea01a4f"
}, {
"type" : "WEB",
"url" : "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-11816.json"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-22" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2026-08-07T20:09:23Z",
"nvd_published_at" : "2026-06-11T14:16:26Z"
}
}