Path Traversal in Kedro-Org Kedro-Org/kedro

CVE-2026-3840

A vulnerability in Kedro version 1.2.0 allows an attacker to exploit path traversal by providing a crafted version string. The `_get_versioned_path()` method in `kedro/io/core.py` directly interpolates user-supplied version strings into filesystem paths without sanitization. This enables an attacker to escape the intended versioned dataset directory and access files outside the expected path. The issue is also reachable through the CLI via the `--load-versions` parameter, as `_split_load_versions()` in `kedro/framework/cli/utils.py` does not validate the version string. This vulnerability can lead to unauthorized file reads, data poisoning, cross-project or cross-tenant data access, and broader downstream impacts in environments where Kedro is used with automation or orchestration layers.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.002 (8.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-3840?
CVE-2026-3840 is a high-severity vulnerability in Kedro-Org Kedro-Org/kedro, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-06-12.
How severe is CVE-2026-3840?
High severity. CVSS v3 base score is 7.1 out of 10.