7.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2026-35167

CVE-2026-35167: Kedro has a path traversal in versioned dataset loading via unsanitized version string

Kedro is a toolbox for production-ready data science. Prior to 1.3.0, the _get_versioned_path() method in kedro/io/core.py constructs filesystem paths by directly interpolating user-supplied version strings without sanitization. Because version strings are used as path components, traversal sequences such as ../ are preserved and can escape the intended versioned dataset directory. This is reachable through multiple entry points: catalog.load(..., version=...), DataCatalog.from_config(..., load_versions=...), and the CLI via kedro run --load-versions=dataset:../../../secrets. An attacker who can influence the version string can force Kedro to load files from outside the intended version directory, enabling unauthorized file reads, data poisoning, or cross-tenant data access in shared environments. This vulnerability is fixed in 1.3.0.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2026-35167

CVE-2026-35167:

7.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

SSVC / BOD 26-04 ↗

Exploitation NoneAutomatable NoTech Impact Partial

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Package Name	Ecosystem	Vulnerable Versions	First Patched Version
kedro	pip	< 1.3.0	1.3.0

Technical Details

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Root Cause Analysis

The root cause of the vulnerability is a path traversal weakness in how Kedro handles version strings for datasets. The core of the issue lies in the AbstractVersionedDataSet._get_versioned_path function, which constructs a file path by directly concatenating a user-supplied version string. This allows an attacker to provide a malicious string containing path traversal characters (e.g., ../) to access arbitrary files on the filesystem.

The vulnerability can be triggered through multiple entry points. The patch explicitly addresses two:

The _get_versioned_path function in kedro/io/core.py is the sink where the path is constructed. The fix introduces a call to a new _is_unsafe_version utility function to validate the version string before use.
The _split_load_versions function in kedro/framework/cli/utils.py, which parses the --load-versions CLI argument, is a direct source for user-controlled input. This function was also patched to validate the version string upon parsing.

By exploiting this, an attacker could achieve unauthorized file reads, potentially leading to information disclosure, data poisoning, or other impacts depending on the accessible files and application context.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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