CVE-2026-10766 mlrun DataFrame Hash helpers.py mlrun.utils.helpers.calculate_dataframe_hash weak hash

Low 2.0 Published Updated

A weak hash implementation in mlrun allows local attackers to potentially bypass integrity checks, requiring high complexity and local access.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-10766?

CVE-2026-10766 is a low-severity vulnerability in mlrun, published on 3 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability has been found in mlrun up to 1.12.0-rc3. This impacts the function mlrun.utils.helpers.calculate_dataframe_hash of the file mlrun/utils/helpers.py of the component DataFrame Hash Handler. The manipulation leads to use of weak hash. The attack can only be performed from a local environment. The complexity of an attack is rather high. The exploitability is said to be difficult. The exploit has been disclosed to the public and may be used. The pull request to fix this issue awaits acceptance.

Weakness: CWE-328, CWE-327

Which versions are affected by CVE-2026-10766?

3 open source packages ship an affected version, including mlrun.

PackageAffectedFixed in
mlrun PyPIAll versions to 1.12.0rc3None
mlrun PyPIAll versions to 1.12.0rc3None
mlrun PyPIAll versions to 1.12.0rc3None

How do I fix CVE-2026-10766?

No fix has been published for CVE-2026-10766 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-10766 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10766 exists.

Sources

Also known as GHSA-phx2-3w66-h4pw, PYSEC-2026-3487.

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