Keras: HDF5 virtual datasets can disclose local files
Keras versions up to and including 3.13.2 are vulnerable to an arbitrary HDF5 file read due to an incomplete fix for CVE-2026-1669. The vulnerability resides in the H5IOStore._verify_dataset() and file_editor.py methods, which fail to check the dataset.is_virtual property of HDF5 datasets. This allows an attacker to craft a malicious .keras model archive or .h5 weights file containing a Virtual Dataset (VDS) that references external HDF5 files on the victim's filesystem. When the victim loads the model using keras.models.load_model() or keras.saving.load_model(), the external file is transparently read, leading to potential information disclosure. Fixed in versions 3.12.3 and 3.15.0.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | keras | < 3.12.3, >= 3.13.0, < 3.15.0 | 3.12.3, 3.15.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-12480
- https://github.com/keras-team/keras/commit/8f987f11bf7512f0df4774a8f1557bba07dc2b49
- https://github.com/keras-team/keras/commit/d5a88bdb137c0d3039b8f4bbbe8c7099925cc10c
- https://github.com/keras-team/keras
- https://github.com/keras-team/keras/releases/tag/v3.12.3
- https://github.com/keras-team/keras/releases/tag/v3.15.0
- https://huntr.com/bounties/1875d257-5b03-4a69-ac70-e98653fa12c7
- https://pypi.org/project/keras
- https://github.com/advisories/GHSA-26c4-7vv6-867j
- CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-73- Platform
- Python (PyPI)
- Package
keras- Disclosed
- 01.07.2026
- Updated
- 11.10.2026 14:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-3629 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-26c4-7vv6-867j - CC BY 4.0
Vulnerability history: keras
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 20
- First → latest
- 04.2024 08.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 11
- Medium 6
- Low 1
Disclosures per year
- 2024: 1
- 2025: 8
- 2026: 11
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