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MEDIUM

CVE-2026-12480

CVSS v3

5.5

MEDIUM

EPSS Score

0.2 %

exploit probability, as of 2026-10-17

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • kerasPyPIall versions · fixed in 3.12.3

Vendor advisories

  • CVE-2026-12480 Red Hat Product Security9 known affected

    keras: Keras: Information disclosure via malicious model archive with Virtual Dataset

    rhoai/odh-kserve-agent-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · rhoai/odh-kserve-controller-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · rhoai/odh-kserve-router-rhel9 as a component of Red Hat OpenShift AI (RHOAI)

Full record on NVD

Description

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 3.12.2 and 3.14.1.

Technical details

CVSS v3 Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Published
2026-07-01
Last Modified
2026-07-02

Frequently asked questions

What is CVE-2026-12480?

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 3.12.2 and 3.14.1.

Is CVE-2026-12480 actively exploited?

Active exploitation of CVE-2026-12480 has not been confirmed. Its EPSS score was 0.2% on 2026-10-17, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-12480?

CVE-2026-12480 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

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