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CRITICAL severity

GHSA-9cqf-439c-j96r — kedro

CRITICAL

GHSA-9cqf-439c-j96r is a critical-severity (CVSS 9.8) Code Injection vulnerability in kedro. A fix is available for kedro — see the affected versions and patch details below.

Kedro has Arbitrary Code Execution via Malicious Logging Configuration

Also known asCVE-2026-35171PYSEC-2026-72
Published
Apr 3, 2026
Updated
Jun 6, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-9cqf-439c-j96r.

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs52th percentile — riskier than 52% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-9cqf-439c-j96r plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 378,567 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected
🐍kedro

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Impact

This is a critical remote code execution (RCE) vulnerability caused by unsafe use of logging.config.dictConfig() with user-controlled input.

Kedro allows the logging configuration file path to be set via the KEDRO_LOGGING_CONFIG environment variable and loads it without validation. The logging configuration schema supports the special () key, which enables arbitrary callable instantiation. An attacker can exploit this to execute arbitrary system commands during application startup.


Patches

The vulnerability is fixed by introducing validation that rejects the unsafe () factory key in logging configurations before passing them to dictConfig().

Fixed in

  • Kedro 1.3.0

Users should upgrade to this version as soon as possible.


Workarounds

If upgrading is not immediately possible:

  • Do not allow untrusted input to control the KEDRO_LOGGING_CONFIG environment variable
  • Restrict write access to logging configuration files
  • Avoid using externally supplied or dynamically generated logging configs
  • Manually validate logging YAML to ensure it does not contain the () key

These mitigations reduce risk but do not fully eliminate it.


References

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIkedroall versions1.3.0pip install --upgrade 'kedro==1.3.0'

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for kedro, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update kedro to 1.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9cqf-439c-j96r is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-9cqf-439c-j96r can be triaged on real exposure rather than presence alone.

Tailored to GHSA-9cqf-439c-j96r. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact This is a **critical remote code execution (RCE)** vulnerability caused by unsafe use of `logging.config.dictConfig()` with user-controlled input. Kedro allows the logging configuration file path to be set via the `KEDRO_LOGGING_CONFIG` environment variable and loads it without validation. The logging configuration schema supports the special `()` key, which enables arbitrary callable instantiation. An attacker can exploit this to execute arbitrary system commands during application startup. --- ### Patches The vulnerability is fixed by introducing validation that rejects the u
O3 Security · Impact-Aware SCA

Is GHSA-9cqf-439c-j96r in your dependencies?

O3 Security finds GHSA-9cqf-439c-j96r across PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-9cqf-439c-j96r: kedro RCE (Critical 9.8) | O3 Security