Path Traversal via Symlink Name Validation Bypass in keras-team/keras (keras-team keras-team/keras)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.33 % · percentile 26 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- @huntr_ai
- NVD status
- Analyzed
Description
A vulnerability in keras-team/keras version 3.12.0 allows an attacker to craft a malicious tar archive that bypasses the `filter_safe_tarinfos` validation in `keras/src/utils/file_utils.py`. Specifically, symlink entries are not subjected to the same `is_path_in_dir` validation as regular file entries, allowing symlinks to be created outside the intended extraction directory. This can lead to symlink-based file read, file overwrite, or directory escape attacks. The issue is particularly impactful on Python 3.10 and 3.11, where `filter_safe_tarinfos` is the sole defense against tar path traversal. This vulnerability is distinct from CVE-2025-12060 and other previously reported issues.
Weaknesses (CWE)
- CWE-22 — Improper Limitation of a Pathname to a Restricted Directory
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | LOW 3.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N | @huntr_ai |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | LOW 3.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N | NVD · security@huntr.dev (Secondary) |
Advisories
- GHSA-58hv-7753-xmfq — Keras: tar extraction permits symlink-based path traversal
- PYSEC-2026-3630 — Keras: tar extraction permits symlink-based path traversal
European references
- ENISA EUVD · EUVD-2026-43620
- GCVE · GCVE-0-2026-12482
Affected configurations (NVD CPE)
cpe:2.3:a:keras:keras:3.12.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| keras-team · keras-team/keras | affected unspecified ≤ latest |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |