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CVE-2026-41490

HighPublished

Dagster Vulnerable to SQL Injection via Dynamic Partition Keys in Database I/O Manager Integrations

Published: May 7, 2026
Updated: May 7, 2026
Assigning CNA: GitHub_M
Evidence observed: Aug 8, 2026

Primary CVSS

8.3/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 18.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Dagster is an orchestration platform for the development, production, and observation of data assets. Prior to Dagster Core version 1.13.1 and prior to Dagster libraries version 0.29.1, the DuckDB, Snowflake, BigQuery, and DeltaLake I/O managers constructed SQL WHERE clauses by interpolating dynamic partition key values into queries without escaping. A user with the Add Dynamic Partitions permission could create a partition key that injects arbitrary SQL, which would execute against the target database backend under the I/O manager's credentials. Only deployments that use dynamic partitions are affected. Pipelines using static or time-window partitions are not impacted. This issue has been patched in Dagster Core version 1.13.1 and Dagster libraries version 0.29.1.

Sources

CVE-2026-41490PoC
Detailed CVE-2026-41490 disclosure with PoC demonstrating unauthenticated SQL injection in Dagster database I/O managers via dynamic partition keys, affecting DuckDB, Snowflake, BigQuery, and DeltaLake integrations.

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