{"id":"CVE-2026-12480","aliases":["GHSA-26c4-7vv6-867j","PYSEC-2026-3629"],"url":"https://o3.security/vulnerability/CVE-2026-12480","summary":"Arbitrary HDF5 File Read via Virtual Dataset Bypass in keras-team/keras","details":"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.","published":"2026-07-01T16:53:32.326Z","modified":"2026-08-12T03:51:40.936513886Z","cvss":{"score":5.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"},"epss":{"score":0.00175,"percentile":0.07218,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"keras","fixedVersion":"3.12.3"},{"ecosystem":"PyPI","name":"keras","fixedVersion":"3.15.0"}],"fix":{"url":"https://github.com/keras-team/keras/commit/d5a88bdb137c0d3039b8f4bbbe8c7099925cc10c","label":"keras-team/keras@d5a88bd"},"references":[{"type":"WEB","url":"https://huntr.com/bounties/1875d257-5b03-4a69-ac70-e98653fa12c7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12480.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12480"},{"type":"FIX","url":"https://github.com/keras-team/keras/commit/d5a88bdb137c0d3039b8f4bbbe8c7099925cc10c"},{"type":"WEB","url":"https://github.com/keras-team/keras/commit/8f987f11bf7512f0df4774a8f1557bba07dc2b49"},{"type":"PACKAGE","url":"https://github.com/keras-team/keras"},{"type":"WEB","url":"https://github.com/keras-team/keras/releases/tag/v3.12.3"},{"type":"WEB","url":"https://github.com/keras-team/keras/releases/tag/v3.15.0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:40.936513886Z"}}